Gecko [ gandhischool.edu.np ]

Name	Size	Permission
utils	[ DIR ]	dr-xr-xr-x
accessor-pairs.js	11.71 KB	-rw-rw-rw-
array-bracket-newline.js	9.45 KB	-rw-rw-rw-
array-bracket-spacing.js	8.96 KB	-rw-rw-rw-
array-callback-return.js	15.5 KB	-rw-rw-rw-
array-element-newline.js	10.9 KB	-rw-rw-rw-
arrow-body-style.js	12.67 KB	-rw-rw-rw-
arrow-parens.js	7.61 KB	-rw-rw-rw-
arrow-spacing.js	5.17 KB	-rw-rw-rw-
block-scoped-var.js	4.24 KB	-rw-rw-rw-
block-spacing.js	5.8 KB	-rw-rw-rw-
brace-style.js	8.04 KB	-rw-rw-rw-
callback-return.js	6.41 KB	-rw-rw-rw-
camelcase.js	13.66 KB	-rw-rw-rw-
capitalized-comments.js	10.48 KB	-rw-rw-rw-
class-methods-use-this.js	6.02 KB	-rw-rw-rw-
comma-dangle.js	13.53 KB	-rw-rw-rw-
comma-spacing.js	6.87 KB	-rw-rw-rw-
comma-style.js	11.72 KB	-rw-rw-rw-
complexity.js	5.6 KB	-rw-rw-rw-
computed-property-spacing.js	7.45 KB	-rw-rw-rw-
consistent-return.js	6.91 KB	-rw-rw-rw-
consistent-this.js	4.99 KB	-rw-rw-rw-
constructor-super.js	15.19 KB	-rw-rw-rw-
curly.js	18.93 KB	-rw-rw-rw-
default-case-last.js	1.21 KB	-rw-rw-rw-
default-case.js	2.77 KB	-rw-rw-rw-
default-param-last.js	1.55 KB	-rw-rw-rw-
dot-location.js	3.43 KB	-rw-rw-rw-
dot-notation.js	6.6 KB	-rw-rw-rw-
eol-last.js	4.01 KB	-rw-rw-rw-
eqeqeq.js	5.65 KB	-rw-rw-rw-
for-direction.js	5 KB	-rw-rw-rw-
func-call-spacing.js	9.77 KB	-rw-rw-rw-
func-name-matching.js	9.91 KB	-rw-rw-rw-
func-names.js	6.3 KB	-rw-rw-rw-
func-style.js	2.85 KB	-rw-rw-rw-
function-call-argument-newline...	4.31 KB	-rw-rw-rw-
function-paren-newline.js	11.61 KB	-rw-rw-rw-
generator-star-spacing.js	7.01 KB	-rw-rw-rw-
getter-return.js	6.87 KB	-rw-rw-rw-
global-require.js	2.44 KB	-rw-rw-rw-
grouped-accessor-pairs.js	7.46 KB	-rw-rw-rw-
guard-for-in.js	2.31 KB	-rw-rw-rw-
handle-callback-err.js	3.06 KB	-rw-rw-rw-
id-blacklist.js	7.54 KB	-rw-rw-rw-
id-denylist.js	7.04 KB	-rw-rw-rw-
id-length.js	6.51 KB	-rw-rw-rw-
id-match.js	11.04 KB	-rw-rw-rw-
implicit-arrow-linebreak.js	2.88 KB	-rw-rw-rw-
indent-legacy.js	43.59 KB	-rw-rw-rw-
indent.js	76.54 KB	-rw-rw-rw-
index.js	17.89 KB	-rw-rw-rw-
init-declarations.js	4.38 KB	-rw-rw-rw-
jsx-quotes.js	2.98 KB	-rw-rw-rw-
key-spacing.js	26.36 KB	-rw-rw-rw-
keyword-spacing.js	23.7 KB	-rw-rw-rw-
line-comment-position.js	4.09 KB	-rw-rw-rw-
linebreak-style.js	3.48 KB	-rw-rw-rw-
lines-around-comment.js	17.85 KB	-rw-rw-rw-
lines-around-directive.js	7.6 KB	-rw-rw-rw-
lines-between-class-members.js	11.15 KB	-rw-rw-rw-
logical-assignment-operators.j...	21.38 KB	-rw-rw-rw-
max-classes-per-file.js	2.58 KB	-rw-rw-rw-
max-depth.js	4.68 KB	-rw-rw-rw-
max-len.js	15.81 KB	-rw-rw-rw-
max-lines-per-function.js	6.92 KB	-rw-rw-rw-
max-lines.js	5.95 KB	-rw-rw-rw-
max-nested-callbacks.js	3.48 KB	-rw-rw-rw-
max-params.js	3.1 KB	-rw-rw-rw-
max-statements-per-line.js	7.35 KB	-rw-rw-rw-
max-statements.js	5.81 KB	-rw-rw-rw-
multiline-comment-style.js	21.22 KB	-rw-rw-rw-
multiline-ternary.js	7.62 KB	-rw-rw-rw-
new-cap.js	9.3 KB	-rw-rw-rw-
new-parens.js	3.19 KB	-rw-rw-rw-
newline-after-var.js	9.46 KB	-rw-rw-rw-
newline-before-return.js	7.87 KB	-rw-rw-rw-
newline-per-chained-call.js	4.04 KB	-rw-rw-rw-
no-alert.js	4.25 KB	-rw-rw-rw-
no-array-constructor.js	4.38 KB	-rw-rw-rw-
no-async-promise-executor.js	1.11 KB	-rw-rw-rw-
no-await-in-loop.js	2.73 KB	-rw-rw-rw-
no-bitwise.js	3.5 KB	-rw-rw-rw-
no-buffer-constructor.js	1.4 KB	-rw-rw-rw-
no-caller.js	1.18 KB	-rw-rw-rw-
no-case-declarations.js	1.83 KB	-rw-rw-rw-
no-catch-shadow.js	2.51 KB	-rw-rw-rw-
no-class-assign.js	1.73 KB	-rw-rw-rw-
no-compare-neg-zero.js	1.9 KB	-rw-rw-rw-
no-cond-assign.js	5.52 KB	-rw-rw-rw-
no-confusing-arrow.js	2.9 KB	-rw-rw-rw-
no-console.js	7.17 KB	-rw-rw-rw-
no-const-assign.js	1.52 KB	-rw-rw-rw-
no-constant-binary-expression....	20.41 KB	-rw-rw-rw-
no-constant-condition.js	4.77 KB	-rw-rw-rw-
no-constructor-return.js	1.57 KB	-rw-rw-rw-
no-continue.js	886 B	-rw-rw-rw-
no-control-regex.js	4.58 KB	-rw-rw-rw-
no-debugger.js	959 B	-rw-rw-rw-
no-delete-var.js	983 B	-rw-rw-rw-
no-div-regex.js	1.42 KB	-rw-rw-rw-
no-dupe-args.js	2.36 KB	-rw-rw-rw-
no-dupe-class-members.js	3.29 KB	-rw-rw-rw-
no-dupe-else-if.js	4.51 KB	-rw-rw-rw-
no-dupe-keys.js	3.88 KB	-rw-rw-rw-
no-duplicate-case.js	2.04 KB	-rw-rw-rw-
no-duplicate-imports.js	9.28 KB	-rw-rw-rw-
no-else-return.js	15.71 KB	-rw-rw-rw-
no-empty-character-class.js	2.23 KB	-rw-rw-rw-
no-empty-function.js	4.63 KB	-rw-rw-rw-
no-empty-pattern.js	2.38 KB	-rw-rw-rw-
no-empty-static-block.js	1.22 KB	-rw-rw-rw-
no-empty.js	3.08 KB	-rw-rw-rw-
no-eq-null.js	1.22 KB	-rw-rw-rw-
no-eval.js	9.34 KB	-rw-rw-rw-
no-ex-assign.js	1.43 KB	-rw-rw-rw-
no-extend-native.js	6.5 KB	-rw-rw-rw-
no-extra-bind.js	7.39 KB	-rw-rw-rw-
no-extra-boolean-cast.js	11.7 KB	-rw-rw-rw-
no-extra-label.js	5.04 KB	-rw-rw-rw-
no-extra-parens.js	52.03 KB	-rw-rw-rw-
no-extra-semi.js	4.99 KB	-rw-rw-rw-
no-fallthrough.js	6.89 KB	-rw-rw-rw-
no-floating-decimal.js	2.42 KB	-rw-rw-rw-
no-func-assign.js	2.2 KB	-rw-rw-rw-
no-global-assign.js	2.97 KB	-rw-rw-rw-
no-implicit-coercion.js	12.97 KB	-rw-rw-rw-
no-implicit-globals.js	5.48 KB	-rw-rw-rw-
no-implied-eval.js	4.54 KB	-rw-rw-rw-
no-import-assign.js	7.25 KB	-rw-rw-rw-
no-inline-comments.js	3.29 KB	-rw-rw-rw-
no-inner-declarations.js	2.96 KB	-rw-rw-rw-
no-invalid-regexp.js	6.3 KB	-rw-rw-rw-
no-invalid-this.js	5.01 KB	-rw-rw-rw-
no-irregular-whitespace.js	9.93 KB	-rw-rw-rw-
no-iterator.js	1.28 KB	-rw-rw-rw-
no-label-var.js	2.36 KB	-rw-rw-rw-
no-labels.js	4.38 KB	-rw-rw-rw-
no-lone-blocks.js	4.23 KB	-rw-rw-rw-
no-lonely-if.js	3.65 KB	-rw-rw-rw-
no-loop-func.js	6.16 KB	-rw-rw-rw-
no-loss-of-precision.js	8.07 KB	-rw-rw-rw-
no-magic-numbers.js	9.26 KB	-rw-rw-rw-
no-misleading-character-class....	9.87 KB	-rw-rw-rw-
no-mixed-operators.js	7.58 KB	-rw-rw-rw-
no-mixed-requires.js	7.26 KB	-rw-rw-rw-
no-mixed-spaces-and-tabs.js	3.67 KB	-rw-rw-rw-
no-multi-assign.js	1.76 KB	-rw-rw-rw-
no-multi-spaces.js	5.04 KB	-rw-rw-rw-
no-multi-str.js	1.8 KB	-rw-rw-rw-
no-multiple-empty-lines.js	6.25 KB	-rw-rw-rw-
no-native-reassign.js	2.99 KB	-rw-rw-rw-
no-negated-condition.js	2.9 KB	-rw-rw-rw-
no-negated-in-lhs.js	1.16 KB	-rw-rw-rw-
no-nested-ternary.js	1.12 KB	-rw-rw-rw-
no-new-func.js	2.98 KB	-rw-rw-rw-
no-new-native-nonconstructor.j...	2.11 KB	-rw-rw-rw-
no-new-object.js	1.72 KB	-rw-rw-rw-
no-new-require.js	1.17 KB	-rw-rw-rw-
no-new-symbol.js	1.58 KB	-rw-rw-rw-
no-new-wrappers.js	1.7 KB	-rw-rw-rw-
no-new.js	1.04 KB	-rw-rw-rw-
no-nonoctal-decimal-escape.js	5.47 KB	-rw-rw-rw-
no-obj-calls.js	2.7 KB	-rw-rw-rw-
no-object-constructor.js	3.55 KB	-rw-rw-rw-
no-octal-escape.js	1.44 KB	-rw-rw-rw-
no-octal.js	1.01 KB	-rw-rw-rw-
no-param-reassign.js	8.42 KB	-rw-rw-rw-
no-path-concat.js	1.68 KB	-rw-rw-rw-
no-plusplus.js	3.1 KB	-rw-rw-rw-
no-process-env.js	1.19 KB	-rw-rw-rw-
no-process-exit.js	1.24 KB	-rw-rw-rw-
no-promise-executor-return.js	8.54 KB	-rw-rw-rw-
no-proto.js	1.21 KB	-rw-rw-rw-
no-prototype-builtins.js	5.83 KB	-rw-rw-rw-
no-redeclare.js	5.67 KB	-rw-rw-rw-
no-regex-spaces.js	6.42 KB	-rw-rw-rw-
no-restricted-exports.js	7.1 KB	-rw-rw-rw-
no-restricted-globals.js	3.79 KB	-rw-rw-rw-
no-restricted-imports.js	16.6 KB	-rw-rw-rw-
no-restricted-modules.js	6.9 KB	-rw-rw-rw-
no-restricted-properties.js	6.17 KB	-rw-rw-rw-
no-restricted-syntax.js	2.17 KB	-rw-rw-rw-
no-return-assign.js	2.62 KB	-rw-rw-rw-
no-return-await.js	5.02 KB	-rw-rw-rw-
no-script-url.js	1.72 KB	-rw-rw-rw-
no-self-assign.js	5.5 KB	-rw-rw-rw-
no-self-compare.js	1.81 KB	-rw-rw-rw-
no-sequences.js	4.67 KB	-rw-rw-rw-
no-setter-return.js	7.07 KB	-rw-rw-rw-
no-shadow-restricted-names.js	2.16 KB	-rw-rw-rw-
no-shadow.js	12.31 KB	-rw-rw-rw-
no-spaced-func.js	2.42 KB	-rw-rw-rw-
no-sparse-arrays.js	1.17 KB	-rw-rw-rw-
no-sync.js	1.65 KB	-rw-rw-rw-
no-tabs.js	2.45 KB	-rw-rw-rw-
no-template-curly-in-string.js	1.15 KB	-rw-rw-rw-
no-ternary.js	889 B	-rw-rw-rw-
no-this-before-super.js	10.87 KB	-rw-rw-rw-
no-throw-literal.js	1.28 KB	-rw-rw-rw-
no-trailing-spaces.js	6.72 KB	-rw-rw-rw-
no-undef-init.js	2.35 KB	-rw-rw-rw-
no-undef.js	2.3 KB	-rw-rw-rw-
no-undefined.js	2.24 KB	-rw-rw-rw-
no-underscore-dangle.js	12.79 KB	-rw-rw-rw-
no-unexpected-multiline.js	4.19 KB	-rw-rw-rw-
no-unmodified-loop-condition.j...	11.65 KB	-rw-rw-rw-
no-unneeded-ternary.js	6.79 KB	-rw-rw-rw-
no-unreachable-loop.js	5.94 KB	-rw-rw-rw-
no-unreachable.js	8.9 KB	-rw-rw-rw-
no-unsafe-finally.js	3.91 KB	-rw-rw-rw-
no-unsafe-negation.js	4.63 KB	-rw-rw-rw-
no-unsafe-optional-chaining.js	6.97 KB	-rw-rw-rw-
no-unused-expressions.js	6.08 KB	-rw-rw-rw-
no-unused-labels.js	4.55 KB	-rw-rw-rw-
no-unused-private-class-member...	7.68 KB	-rw-rw-rw-
no-unused-vars.js	27 KB	-rw-rw-rw-
no-use-before-define.js	10.88 KB	-rw-rw-rw-
no-useless-backreference.js	7.57 KB	-rw-rw-rw-
no-useless-call.js	2.99 KB	-rw-rw-rw-
no-useless-catch.js	1.71 KB	-rw-rw-rw-
no-useless-computed-key.js	6.3 KB	-rw-rw-rw-
no-useless-concat.js	3.24 KB	-rw-rw-rw-
no-useless-constructor.js	5.75 KB	-rw-rw-rw-
no-useless-escape.js	13.18 KB	-rw-rw-rw-
no-useless-rename.js	5.88 KB	-rw-rw-rw-
no-useless-return.js	14.01 KB	-rw-rw-rw-
no-var.js	12.14 KB	-rw-rw-rw-
no-void.js	1.72 KB	-rw-rw-rw-
no-warning-comments.js	7.12 KB	-rw-rw-rw-
no-whitespace-before-property....	3.92 KB	-rw-rw-rw-
no-with.js	876 B	-rw-rw-rw-
nonblock-statement-body-positi...	4.56 KB	-rw-rw-rw-
object-curly-newline.js	11.53 KB	-rw-rw-rw-
object-curly-spacing.js	11.61 KB	-rw-rw-rw-
object-property-newline.js	3.8 KB	-rw-rw-rw-
object-shorthand.js	21.78 KB	-rw-rw-rw-
one-var-declaration-per-line.j...	2.86 KB	-rw-rw-rw-
one-var.js	22.37 KB	-rw-rw-rw-
operator-assignment.js	8.58 KB	-rw-rw-rw-
operator-linebreak.js	9.88 KB	-rw-rw-rw-
padded-blocks.js	10.79 KB	-rw-rw-rw-
padding-line-between-statement...	18.85 KB	-rw-rw-rw-
prefer-arrow-callback.js	14.33 KB	-rw-rw-rw-
prefer-const.js	18.27 KB	-rw-rw-rw-
prefer-destructuring.js	10.93 KB	-rw-rw-rw-
prefer-exponentiation-operator...	7.58 KB	-rw-rw-rw-
prefer-named-capture-group.js	5.84 KB	-rw-rw-rw-
prefer-numeric-literals.js	5.7 KB	-rw-rw-rw-
prefer-object-has-own.js	4.24 KB	-rw-rw-rw-
prefer-object-spread.js	10.45 KB	-rw-rw-rw-
prefer-promise-reject-errors.j...	5.37 KB	-rw-rw-rw-
prefer-reflect.js	4.59 KB	-rw-rw-rw-
prefer-regex-literals.js	18.06 KB	-rw-rw-rw-
prefer-rest-params.js	3.39 KB	-rw-rw-rw-
prefer-spread.js	2.78 KB	-rw-rw-rw-
prefer-template.js	11.15 KB	-rw-rw-rw-
quote-props.js	11.82 KB	-rw-rw-rw-
quotes.js	12.41 KB	-rw-rw-rw-
radix.js	6.75 KB	-rw-rw-rw-
require-atomic-updates.js	11.1 KB	-rw-rw-rw-
require-await.js	3.27 KB	-rw-rw-rw-
require-jsdoc.js	3.77 KB	-rw-rw-rw-
require-unicode-regexp.js	5.1 KB	-rw-rw-rw-
require-yield.js	2.05 KB	-rw-rw-rw-
rest-spread-spacing.js	4.03 KB	-rw-rw-rw-
semi-spacing.js	8.71 KB	-rw-rw-rw-
semi-style.js	5.24 KB	-rw-rw-rw-
semi.js	15.87 KB	-rw-rw-rw-
sort-imports.js	10.62 KB	-rw-rw-rw-
sort-keys.js	7.16 KB	-rw-rw-rw-
sort-vars.js	4.04 KB	-rw-rw-rw-
space-before-blocks.js	7.14 KB	-rw-rw-rw-
space-before-function-paren.js	5.87 KB	-rw-rw-rw-
space-in-parens.js	10.55 KB	-rw-rw-rw-
space-infix-ops.js	6.42 KB	-rw-rw-rw-
space-unary-ops.js	12.39 KB	-rw-rw-rw-
spaced-comment.js	12.85 KB	-rw-rw-rw-
strict.js	10.37 KB	-rw-rw-rw-
switch-colon-spacing.js	4.9 KB	-rw-rw-rw-
symbol-description.js	2.04 KB	-rw-rw-rw-
template-curly-spacing.js	4.74 KB	-rw-rw-rw-
template-tag-spacing.js	3.08 KB	-rw-rw-rw-
unicode-bom.js	2.15 KB	-rw-rw-rw-
use-isnan.js	4.64 KB	-rw-rw-rw-
valid-jsdoc.js	20.08 KB	-rw-rw-rw-
valid-typeof.js	4.92 KB	-rw-rw-rw-
vars-on-top.js	5.17 KB	-rw-rw-rw-
wrap-iife.js	7.8 KB	-rw-rw-rw-
wrap-regex.js	1.85 KB	-rw-rw-rw-
yield-star-spacing.js	4.31 KB	-rw-rw-rw-
yoda.js	11.89 KB	-rw-rw-rw-

Code Editor : prefer-const.js

/**
 * @fileoverview A rule to suggest using of const declaration for variables that are never reassigned after declared.
 * @author Toru Nagashima
 */

"use strict";

//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

const FixTracker = require("./utils/fix-tracker");
const astUtils = require("./utils/ast-utils");

//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------

/**
 * Checks whether a given node is located at `ForStatement.init` or not.
 * @param {ASTNode} node A node to check.
 * @returns {boolean} `true` if the node is located at `ForStatement.init`.
 */
function isInitOfForStatement(node) {
    return node.parent.type === "ForStatement" && node.parent.init === node;
}

/**
 * Checks whether a given Identifier node becomes a VariableDeclaration or not.
 * @param {ASTNode} identifier An Identifier node to check.
 * @returns {boolean} `true` if the node can become a VariableDeclaration.
 */
function canBecomeVariableDeclaration(identifier) {
    let node = identifier.parent;

while (PATTERN_TYPE.test(node.type)) {
        node = node.parent;
    }

return (
        node.type === "VariableDeclarator" ||
        (
            node.type === "AssignmentExpression" &&
            node.parent.type === "ExpressionStatement" &&
            DECLARATION_HOST_TYPE.test(node.parent.parent.type)
        )
    );
}

/**
 * Checks if an property or element is from outer scope or function parameters
 * in destructing pattern.
 * @param {string} name A variable name to be checked.
 * @param {eslint-scope.Scope} initScope A scope to start find.
 * @returns {boolean} Indicates if the variable is from outer scope or function parameters.
 */
function isOuterVariableInDestructing(name, initScope) {

if (initScope.through.some(ref => ref.resolved && ref.resolved.name === name)) {
        return true;
    }

const variable = astUtils.getVariableByName(initScope, name);

if (variable !== null) {
        return variable.defs.some(def => def.type === "Parameter");
    }

return false;
}

/**
 * Gets the VariableDeclarator/AssignmentExpression node that a given reference
 * belongs to.
 * This is used to detect a mix of reassigned and never reassigned in a
 * destructuring.
 * @param {eslint-scope.Reference} reference A reference to get.
 * @returns {ASTNode|null} A VariableDeclarator/AssignmentExpression node or
 *      null.
 */
function getDestructuringHost(reference) {
    if (!reference.isWrite()) {
        return null;
    }
    let node = reference.identifier.parent;

while (PATTERN_TYPE.test(node.type)) {
        node = node.parent;
    }

if (!DESTRUCTURING_HOST_TYPE.test(node.type)) {
        return null;
    }
    return node;
}

/**
 * Determines if a destructuring assignment node contains
 * any MemberExpression nodes. This is used to determine if a
 * variable that is only written once using destructuring can be
 * safely converted into a const declaration.
 * @param {ASTNode} node The ObjectPattern or ArrayPattern node to check.
 * @returns {boolean} True if the destructuring pattern contains
 *      a MemberExpression, false if not.
 */
function hasMemberExpressionAssignment(node) {
    switch (node.type) {
        case "ObjectPattern":
            return node.properties.some(prop => {
                if (prop) {

/*
                     * Spread elements have an argument property while
                     * others have a value property. Because different
                     * parsers use different node types for spread elements,
                     * we just check if there is an argument property.
                     */
                    return hasMemberExpressionAssignment(prop.argument || prop.value);
                }

return false;
            });

case "ArrayPattern":
            return node.elements.some(element => {
                if (element) {
                    return hasMemberExpressionAssignment(element);
                }

return false;
            });

case "AssignmentPattern":
            return hasMemberExpressionAssignment(node.left);

case "MemberExpression":
            return true;

// no default
    }

return false;
}

/**
 * Gets an identifier node of a given variable.
 *
 * If the initialization exists or one or more reading references exist before
 * the first assignment, the identifier node is the node of the declaration.
 * Otherwise, the identifier node is the node of the first assignment.
 *
 * If the variable should not change to const, this function returns null.
 * - If the variable is reassigned.
 * - If the variable is never initialized nor assigned.
 * - If the variable is initialized in a different scope from the declaration.
 * - If the unique assignment of the variable cannot change to a declaration.
 *   e.g. `if (a) b = 1` / `return (b = 1)`
 * - If the variable is declared in the global scope and `eslintUsed` is `true`.
 *   `/*exported foo` directive comment makes such variables. This rule does not
 *   warn such variables because this rule cannot distinguish whether the
 *   exported variables are reassigned or not.
 * @param {eslint-scope.Variable} variable A variable to get.
 * @param {boolean} ignoreReadBeforeAssign
 *      The value of `ignoreReadBeforeAssign` option.
 * @returns {ASTNode|null}
 *      An Identifier node if the variable should change to const.
 *      Otherwise, null.
 */
function getIdentifierIfShouldBeConst(variable, ignoreReadBeforeAssign) {
    if (variable.eslintUsed && variable.scope.type === "global") {
        return null;
    }

// Finds the unique WriteReference.
    let writer = null;
    let isReadBeforeInit = false;
    const references = variable.references;

for (let i = 0; i < references.length; ++i) {
        const reference = references[i];

if (reference.isWrite()) {
            const isReassigned = (
                writer !== null &&
                writer.identifier !== reference.identifier
            );

if (isReassigned) {
                return null;
            }

const destructuringHost = getDestructuringHost(reference);

if (destructuringHost !== null && destructuringHost.left !== void 0) {
                const leftNode = destructuringHost.left;
                let hasOuterVariables = false,
                    hasNonIdentifiers = false;

if (leftNode.type === "ObjectPattern") {
                    const properties = leftNode.properties;

hasOuterVariables = properties
                        .filter(prop => prop.value)
                        .map(prop => prop.value.name)
                        .some(name => isOuterVariableInDestructing(name, variable.scope));

hasNonIdentifiers = hasMemberExpressionAssignment(leftNode);

} else if (leftNode.type === "ArrayPattern") {
                    const elements = leftNode.elements;

hasOuterVariables = elements
                        .map(element => element && element.name)
                        .some(name => isOuterVariableInDestructing(name, variable.scope));

hasNonIdentifiers = hasMemberExpressionAssignment(leftNode);
                }

if (hasOuterVariables || hasNonIdentifiers) {
                    return null;
                }

}

writer = reference;

} else if (reference.isRead() && writer === null) {
            if (ignoreReadBeforeAssign) {
                return null;
            }
            isReadBeforeInit = true;
        }
    }

/*
     * If the assignment is from a different scope, ignore it.
     * If the assignment cannot change to a declaration, ignore it.
     */
    const shouldBeConst = (
        writer !== null &&
        writer.from === variable.scope &&
        canBecomeVariableDeclaration(writer.identifier)
    );

if (!shouldBeConst) {
        return null;
    }

if (isReadBeforeInit) {
        return variable.defs[0].name;
    }

return writer.identifier;
}

/**
 * Groups by the VariableDeclarator/AssignmentExpression node that each
 * reference of given variables belongs to.
 * This is used to detect a mix of reassigned and never reassigned in a
 * destructuring.
 * @param {eslint-scope.Variable[]} variables Variables to group by destructuring.
 * @param {boolean} ignoreReadBeforeAssign
 *      The value of `ignoreReadBeforeAssign` option.
 * @returns {Map<ASTNode, ASTNode[]>} Grouped identifier nodes.
 */
function groupByDestructuring(variables, ignoreReadBeforeAssign) {
    const identifierMap = new Map();

for (let i = 0; i < variables.length; ++i) {
        const variable = variables[i];
        const references = variable.references;
        const identifier = getIdentifierIfShouldBeConst(variable, ignoreReadBeforeAssign);
        let prevId = null;

for (let j = 0; j < references.length; ++j) {
            const reference = references[j];
            const id = reference.identifier;

/*
             * Avoid counting a reference twice or more for default values of
             * destructuring.
             */
            if (id === prevId) {
                continue;
            }
            prevId = id;

// Add the identifier node into the destructuring group.
            const group = getDestructuringHost(reference);

if (group) {
                if (identifierMap.has(group)) {
                    identifierMap.get(group).push(identifier);
                } else {
                    identifierMap.set(group, [identifier]);
                }
            }
        }
    }

return identifierMap;
}

/**
 * Finds the nearest parent of node with a given type.
 * @param {ASTNode} node The node to search from.
 * @param {string} type The type field of the parent node.
 * @param {Function} shouldStop A predicate that returns true if the traversal should stop, and false otherwise.
 * @returns {ASTNode} The closest ancestor with the specified type; null if no such ancestor exists.
 */
function findUp(node, type, shouldStop) {
    if (!node || shouldStop(node)) {
        return null;
    }
    if (node.type === type) {
        return node;
    }
    return findUp(node.parent, type, shouldStop);
}

//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

/** @type {import('../shared/types').Rule} */
module.exports = {
    meta: {
        type: "suggestion",

docs: {
            description: "Require `const` declarations for variables that are never reassigned after declared",
            recommended: false,
            url: "https://eslint.org/docs/latest/rules/prefer-const"
        },

fixable: "code",

schema: [
            {
                type: "object",
                properties: {
                    destructuring: { enum: ["any", "all"], default: "any" },
                    ignoreReadBeforeAssign: { type: "boolean", default: false }
                },
                additionalProperties: false
            }
        ],
        messages: {
            useConst: "'{{name}}' is never reassigned. Use 'const' instead."
        }
    },

create(context) {
        const options = context.options[0] || {};
        const sourceCode = context.sourceCode;
        const shouldMatchAnyDestructuredVariable = options.destructuring !== "all";
        const ignoreReadBeforeAssign = options.ignoreReadBeforeAssign === true;
        const variables = [];
        let reportCount = 0;
        let checkedId = null;
        let checkedName = "";

/**
         * Reports given identifier nodes if all of the nodes should be declared
         * as const.
         *
         * The argument 'nodes' is an array of Identifier nodes.
         * This node is the result of 'getIdentifierIfShouldBeConst()', so it's
         * nullable. In simple declaration or assignment cases, the length of
         * the array is 1. In destructuring cases, the length of the array can
         * be 2 or more.
         * @param {(eslint-scope.Reference|null)[]} nodes
         *      References which are grouped by destructuring to report.
         * @returns {void}
         */
        function checkGroup(nodes) {
            const nodesToReport = nodes.filter(Boolean);

if (nodes.length && (shouldMatchAnyDestructuredVariable || nodesToReport.length === nodes.length)) {
                const varDeclParent = findUp(nodes[0], "VariableDeclaration", parentNode => parentNode.type.endsWith("Statement"));
                const isVarDecParentNull = varDeclParent === null;

if (!isVarDecParentNull && varDeclParent.declarations.length > 0) {
                    const firstDeclaration = varDeclParent.declarations[0];

if (firstDeclaration.init) {
                        const firstDecParent = firstDeclaration.init.parent;

/*
                         * First we check the declaration type and then depending on
                         * if the type is a "VariableDeclarator" or its an "ObjectPattern"
                         * we compare the name and id from the first identifier, if the names are different
                         * we assign the new name, id and reset the count of reportCount and nodeCount in
                         * order to check each block for the number of reported errors and base our fix
                         * based on comparing nodes.length and nodesToReport.length.
                         */

if (firstDecParent.type === "VariableDeclarator") {

if (firstDecParent.id.name !== checkedName) {
                                checkedName = firstDecParent.id.name;
                                reportCount = 0;
                            }

if (firstDecParent.id.type === "ObjectPattern") {
                                if (firstDecParent.init.name !== checkedName) {
                                    checkedName = firstDecParent.init.name;
                                    reportCount = 0;
                                }
                            }

if (firstDecParent.id !== checkedId) {
                                checkedId = firstDecParent.id;
                                reportCount = 0;
                            }
                        }
                    }
                }

let shouldFix = varDeclParent &&

// Don't do a fix unless all variables in the declarations are initialized (or it's in a for-in or for-of loop)
                    (varDeclParent.parent.type === "ForInStatement" || varDeclParent.parent.type === "ForOfStatement" ||
                        varDeclParent.declarations.every(declaration => declaration.init)) &&

/*
                     * If options.destructuring is "all", then this warning will not occur unless
                     * every assignment in the destructuring should be const. In that case, it's safe
                     * to apply the fix.
                     */
                    nodesToReport.length === nodes.length;

if (!isVarDecParentNull && varDeclParent.declarations && varDeclParent.declarations.length !== 1) {

if (varDeclParent && varDeclParent.declarations && varDeclParent.declarations.length >= 1) {

/*
                         * Add nodesToReport.length to a count, then comparing the count to the length
                         * of the declarations in the current block.
                         */

reportCount += nodesToReport.length;

let totalDeclarationsCount = 0;

varDeclParent.declarations.forEach(declaration => {
                            if (declaration.id.type === "ObjectPattern") {
                                totalDeclarationsCount += declaration.id.properties.length;
                            } else if (declaration.id.type === "ArrayPattern") {
                                totalDeclarationsCount += declaration.id.elements.length;
                            } else {
                                totalDeclarationsCount += 1;
                            }
                        });

shouldFix = shouldFix && (reportCount === totalDeclarationsCount);
                    }
                }

nodesToReport.forEach(node => {
                    context.report({
                        node,
                        messageId: "useConst",
                        data: node,
                        fix: shouldFix
                            ? fixer => {
                                const letKeywordToken = sourceCode.getFirstToken(varDeclParent, t => t.value === varDeclParent.kind);

/**
                                 * Extend the replacement range to the whole declaration,
                                 * in order to prevent other fixes in the same pass
                                 * https://github.com/eslint/eslint/issues/13899
                                 */
                                return new FixTracker(fixer, sourceCode)
                                    .retainRange(varDeclParent.range)
                                    .replaceTextRange(letKeywordToken.range, "const");
                            }
                            : null
                    });
                });
            }
        }

return {
            "Program:exit"() {
                groupByDestructuring(variables, ignoreReadBeforeAssign).forEach(checkGroup);
            },

VariableDeclaration(node) {
                if (node.kind === "let" && !isInitOfForStatement(node)) {
                    variables.push(...sourceCode.getDeclaredVariables(node));
                }
            }
        };
    }
};

${this.title}

Code Editor : prefer-const.js