Gecko [ gandhischool.edu.np ]

Name	Size	Permission
tables	[ DIR ]	dr-xr-xr-x
AbstractEqualityComparison.js	1.12 KB	-rw-rw-rw-
AbstractRelationalComparison.j...	1.52 KB	-rw-rw-rw-
AdvanceStringIndex.js	1.2 KB	-rw-rw-rw-
ArrayCreate.js	1.57 KB	-rw-rw-rw-
ArraySetLength.js	2.37 KB	-rw-rw-rw-
ArraySpeciesCreate.js	1.32 KB	-rw-rw-rw-
Call.js	614 B	-rw-rw-rw-
CanonicalNumericIndexString.js	572 B	-rw-rw-rw-
Canonicalize.js	1.17 KB	-rw-rw-rw-
CharacterRange.js	776 B	-rw-rw-rw-
CompletePropertyDescriptor.js	1.08 KB	-rw-rw-rw-
CompletionRecord.js	1.32 KB	-rw-rw-rw-
CreateDataProperty.js	705 B	-rw-rw-rw-
CreateDataPropertyOrThrow.js	681 B	-rw-rw-rw-
CreateHTML.js	846 B	-rw-rw-rw-
CreateIterResultObject.js	349 B	-rw-rw-rw-
CreateListFromArrayLike.js	1.32 KB	-rw-rw-rw-
CreateMethodProperty.js	926 B	-rw-rw-rw-
DateFromTime.js	988 B	-rw-rw-rw-
Day.js	234 B	-rw-rw-rw-
DayFromYear.js	256 B	-rw-rw-rw-
DayWithinYear.js	286 B	-rw-rw-rw-
DaysInYear.js	301 B	-rw-rw-rw-
DefinePropertyOrThrow.js	1.13 KB	-rw-rw-rw-
DeletePropertyOrThrow.js	646 B	-rw-rw-rw-
DetachArrayBuffer.js	1.23 KB	-rw-rw-rw-
EnumerableOwnNames.js	364 B	-rw-rw-rw-
FromPropertyDescriptor.js	536 B	-rw-rw-rw-
Get.js	549 B	-rw-rw-rw-
GetGlobalObject.js	198 B	-rw-rw-rw-
GetIterator.js	803 B	-rw-rw-rw-
GetMethod.js	680 B	-rw-rw-rw-
GetOwnPropertyKeys.js	822 B	-rw-rw-rw-
GetPrototypeFromConstructor.js	1.05 KB	-rw-rw-rw-
GetSubstitution.js	3.19 KB	-rw-rw-rw-
GetV.js	488 B	-rw-rw-rw-
GetValueFromBuffer.js	3.28 KB	-rw-rw-rw-
HasOwnProperty.js	509 B	-rw-rw-rw-
HasProperty.js	464 B	-rw-rw-rw-
HourFromTime.js	382 B	-rw-rw-rw-
InLeapYear.js	462 B	-rw-rw-rw-
InstanceofOperator.js	911 B	-rw-rw-rw-
IntegerIndexedElementGet.js	1.8 KB	-rw-rw-rw-
IntegerIndexedElementSet.js	1.67 KB	-rw-rw-rw-
InternalizeJSONProperty.js	2.08 KB	-rw-rw-rw-
Invoke.js	662 B	-rw-rw-rw-
IsAccessorDescriptor.js	558 B	-rw-rw-rw-
IsArray.js	118 B	-rw-rw-rw-
IsCallable.js	108 B	-rw-rw-rw-
IsCompatiblePropertyDescriptor...	367 B	-rw-rw-rw-
IsConcatSpreadable.js	621 B	-rw-rw-rw-
IsConstructor.js	1.12 KB	-rw-rw-rw-
IsDataDescriptor.js	561 B	-rw-rw-rw-
IsDetachedBuffer.js	735 B	-rw-rw-rw-
IsExtensible.js	504 B	-rw-rw-rw-
IsGenericDescriptor.js	656 B	-rw-rw-rw-
IsInteger.js	203 B	-rw-rw-rw-
IsPromise.js	480 B	-rw-rw-rw-
IsPropertyDescriptor.js	311 B	-rw-rw-rw-
IsPropertyKey.js	202 B	-rw-rw-rw-
IsRegExp.js	540 B	-rw-rw-rw-
IsWordChar.js	1.06 KB	-rw-rw-rw-
IteratorClose.js	1.62 KB	-rw-rw-rw-
IteratorComplete.js	445 B	-rw-rw-rw-
IteratorNext.js	440 B	-rw-rw-rw-
IteratorStep.js	348 B	-rw-rw-rw-
IteratorValue.js	390 B	-rw-rw-rw-
MakeDate.js	328 B	-rw-rw-rw-
MakeDay.js	917 B	-rw-rw-rw-
MakeTime.js	698 B	-rw-rw-rw-
MinFromTime.js	396 B	-rw-rw-rw-
MonthFromTime.js	1014 B	-rw-rw-rw-
NewPromiseCapability.js	1.2 KB	-rw-rw-rw-
NormalCompletion.js	237 B	-rw-rw-rw-
ObjectCreate.js	1.28 KB	-rw-rw-rw-
ObjectDefineProperties.js	1.28 KB	-rw-rw-rw-
OrdinaryCreateFromConstructor....	801 B	-rw-rw-rw-
OrdinaryDefineOwnProperty.js	2.1 KB	-rw-rw-rw-
OrdinaryGetOwnProperty.js	1.15 KB	-rw-rw-rw-
OrdinaryHasInstance.js	565 B	-rw-rw-rw-
OrdinaryHasProperty.js	478 B	-rw-rw-rw-
QuoteJSONString.js	1.31 KB	-rw-rw-rw-
RegExpCreate.js	643 B	-rw-rw-rw-
RegExpExec.js	817 B	-rw-rw-rw-
RequireObjectCoercible.js	83 B	-rw-rw-rw-
SameValue.js	307 B	-rw-rw-rw-
SameValueZero.js	218 B	-rw-rw-rw-
SecFromTime.js	402 B	-rw-rw-rw-
Set.js	1.17 KB	-rw-rw-rw-
SetFunctionName.js	1.26 KB	-rw-rw-rw-
SetIntegrityLevel.js	1.78 KB	-rw-rw-rw-
SetValueInBuffer.js	3.79 KB	-rw-rw-rw-
SpeciesConstructor.js	837 B	-rw-rw-rw-
SplitMatch.js	808 B	-rw-rw-rw-
StrictEqualityComparison.js	361 B	-rw-rw-rw-
StringCreate.js	1.06 KB	-rw-rw-rw-
StringGetIndexProperty.js	1.27 KB	-rw-rw-rw-
SymbolDescriptiveString.js	443 B	-rw-rw-rw-
TestIntegrityLevel.js	1.17 KB	-rw-rw-rw-
TimeClip.js	468 B	-rw-rw-rw-
TimeFromYear.js	261 B	-rw-rw-rw-
TimeWithinDay.js	247 B	-rw-rw-rw-
ToBoolean.js	130 B	-rw-rw-rw-
ToDateString.js	514 B	-rw-rw-rw-
ToInt16.js	255 B	-rw-rw-rw-
ToInt32.js	173 B	-rw-rw-rw-
ToInt8.js	242 B	-rw-rw-rw-
ToInteger.js	268 B	-rw-rw-rw-
ToLength.js	332 B	-rw-rw-rw-
ToNumber.js	1.48 KB	-rw-rw-rw-
ToObject.js	126 B	-rw-rw-rw-
ToPrimitive.js	282 B	-rw-rw-rw-
ToPropertyDescriptor.js	1.41 KB	-rw-rw-rw-
ToPropertyKey.js	400 B	-rw-rw-rw-
ToString.js	389 B	-rw-rw-rw-
ToUint16.js	564 B	-rw-rw-rw-
ToUint32.js	175 B	-rw-rw-rw-
ToUint8.js	573 B	-rw-rw-rw-
ToUint8Clamp.js	515 B	-rw-rw-rw-
Type.js	244 B	-rw-rw-rw-
ValidateAndApplyPropertyDescri...	4.86 KB	-rw-rw-rw-
ValidateTypedArray.js	780 B	-rw-rw-rw-
WeekDay.js	208 B	-rw-rw-rw-
YearFromTime.js	407 B	-rw-rw-rw-
abs.js	207 B	-rw-rw-rw-
floor.js	217 B	-rw-rw-rw-
max.js	176 B	-rw-rw-rw-
min.js	176 B	-rw-rw-rw-
modulo.js	168 B	-rw-rw-rw-
msFromTime.js	253 B	-rw-rw-rw-
thisBooleanValue.js	332 B	-rw-rw-rw-
thisNumberValue.js	355 B	-rw-rw-rw-
thisStringValue.js	326 B	-rw-rw-rw-
thisTimeValue.js	262 B	-rw-rw-rw-

Name

Size

Permission

Action

tables

[ DIR ]

dr-xr-xr-x

AbstractEqualityComparison.js

1.12 KB

-rw-rw-rw-

AbstractRelationalComparison.j...

1.52 KB

-rw-rw-rw-

AdvanceStringIndex.js

1.2 KB

-rw-rw-rw-

ArrayCreate.js

1.57 KB

-rw-rw-rw-

ArraySetLength.js

2.37 KB

-rw-rw-rw-

ArraySpeciesCreate.js

1.32 KB

-rw-rw-rw-

Call.js

614 B

-rw-rw-rw-

CanonicalNumericIndexString.js

572 B

-rw-rw-rw-

Canonicalize.js

1.17 KB

-rw-rw-rw-

CharacterRange.js

776 B

-rw-rw-rw-

CompletePropertyDescriptor.js

1.08 KB

-rw-rw-rw-

CompletionRecord.js

1.32 KB

-rw-rw-rw-

CreateDataProperty.js

705 B

-rw-rw-rw-

CreateDataPropertyOrThrow.js

681 B

-rw-rw-rw-

CreateHTML.js

846 B

-rw-rw-rw-

CreateIterResultObject.js

349 B

-rw-rw-rw-

CreateListFromArrayLike.js

1.32 KB

-rw-rw-rw-

CreateMethodProperty.js

926 B

-rw-rw-rw-

DateFromTime.js

988 B

-rw-rw-rw-

Day.js

234 B

-rw-rw-rw-

DayFromYear.js

256 B

-rw-rw-rw-

DayWithinYear.js

286 B

-rw-rw-rw-

DaysInYear.js

301 B

-rw-rw-rw-

DefinePropertyOrThrow.js

1.13 KB

-rw-rw-rw-

DeletePropertyOrThrow.js

646 B

-rw-rw-rw-

DetachArrayBuffer.js

1.23 KB

-rw-rw-rw-

EnumerableOwnNames.js

364 B

-rw-rw-rw-

FromPropertyDescriptor.js

536 B

-rw-rw-rw-

Get.js

549 B

-rw-rw-rw-

GetGlobalObject.js

198 B

-rw-rw-rw-

GetIterator.js

803 B

-rw-rw-rw-

GetMethod.js

680 B

-rw-rw-rw-

GetOwnPropertyKeys.js

822 B

-rw-rw-rw-

GetPrototypeFromConstructor.js

1.05 KB

-rw-rw-rw-

GetSubstitution.js

3.19 KB

-rw-rw-rw-

GetV.js

488 B

-rw-rw-rw-

GetValueFromBuffer.js

3.28 KB

-rw-rw-rw-

HasOwnProperty.js

509 B

-rw-rw-rw-

HasProperty.js

464 B

-rw-rw-rw-

HourFromTime.js

382 B

-rw-rw-rw-

InLeapYear.js

462 B

-rw-rw-rw-

InstanceofOperator.js

911 B

-rw-rw-rw-

IntegerIndexedElementGet.js

1.8 KB

-rw-rw-rw-

IntegerIndexedElementSet.js

1.67 KB

-rw-rw-rw-

InternalizeJSONProperty.js

2.08 KB

-rw-rw-rw-

Invoke.js

662 B

-rw-rw-rw-

IsAccessorDescriptor.js

558 B

-rw-rw-rw-

IsArray.js

118 B

-rw-rw-rw-

IsCallable.js

108 B

-rw-rw-rw-

IsCompatiblePropertyDescriptor...

367 B

-rw-rw-rw-

IsConcatSpreadable.js

621 B

-rw-rw-rw-

IsConstructor.js

1.12 KB

-rw-rw-rw-

IsDataDescriptor.js

561 B

-rw-rw-rw-

IsDetachedBuffer.js

735 B

-rw-rw-rw-

IsExtensible.js

504 B

-rw-rw-rw-

IsGenericDescriptor.js

656 B

-rw-rw-rw-

IsInteger.js

203 B

-rw-rw-rw-

IsPromise.js

480 B

-rw-rw-rw-

IsPropertyDescriptor.js

311 B

-rw-rw-rw-

IsPropertyKey.js

202 B

-rw-rw-rw-

IsRegExp.js

540 B

-rw-rw-rw-

IsWordChar.js

1.06 KB

-rw-rw-rw-

IteratorClose.js

1.62 KB

-rw-rw-rw-

IteratorComplete.js

445 B

-rw-rw-rw-

IteratorNext.js

440 B

-rw-rw-rw-

IteratorStep.js

348 B

-rw-rw-rw-

IteratorValue.js

390 B

-rw-rw-rw-

MakeDate.js

328 B

-rw-rw-rw-

MakeDay.js

917 B

-rw-rw-rw-

MakeTime.js

698 B

-rw-rw-rw-

MinFromTime.js

396 B

-rw-rw-rw-

MonthFromTime.js

1014 B

-rw-rw-rw-

NewPromiseCapability.js

1.2 KB

-rw-rw-rw-

NormalCompletion.js

237 B

-rw-rw-rw-

ObjectCreate.js

1.28 KB

-rw-rw-rw-

ObjectDefineProperties.js

1.28 KB

-rw-rw-rw-

OrdinaryCreateFromConstructor....

801 B

-rw-rw-rw-

OrdinaryDefineOwnProperty.js

2.1 KB

-rw-rw-rw-

OrdinaryGetOwnProperty.js

1.15 KB

-rw-rw-rw-

OrdinaryHasInstance.js

565 B

-rw-rw-rw-

OrdinaryHasProperty.js

478 B

-rw-rw-rw-

QuoteJSONString.js

1.31 KB

-rw-rw-rw-

RegExpCreate.js

643 B

-rw-rw-rw-

RegExpExec.js

817 B

-rw-rw-rw-

RequireObjectCoercible.js

83 B

-rw-rw-rw-

SameValue.js

307 B

-rw-rw-rw-

SameValueZero.js

218 B

-rw-rw-rw-

SecFromTime.js

402 B

-rw-rw-rw-

Set.js

1.17 KB

-rw-rw-rw-

SetFunctionName.js

1.26 KB

-rw-rw-rw-

SetIntegrityLevel.js

1.78 KB

-rw-rw-rw-

SetValueInBuffer.js

3.79 KB

-rw-rw-rw-

SpeciesConstructor.js

837 B

-rw-rw-rw-

SplitMatch.js

808 B

-rw-rw-rw-

StrictEqualityComparison.js

361 B

-rw-rw-rw-

StringCreate.js

1.06 KB

-rw-rw-rw-

StringGetIndexProperty.js

1.27 KB

-rw-rw-rw-

SymbolDescriptiveString.js

443 B

-rw-rw-rw-

TestIntegrityLevel.js

1.17 KB

-rw-rw-rw-

TimeClip.js

468 B

-rw-rw-rw-

TimeFromYear.js

261 B

-rw-rw-rw-

TimeWithinDay.js

247 B

-rw-rw-rw-

ToBoolean.js

130 B

-rw-rw-rw-

ToDateString.js

514 B

-rw-rw-rw-

ToInt16.js

255 B

-rw-rw-rw-

ToInt32.js

173 B

-rw-rw-rw-

ToInt8.js

242 B

-rw-rw-rw-

ToInteger.js

268 B

-rw-rw-rw-

ToLength.js

332 B

-rw-rw-rw-

ToNumber.js

1.48 KB

-rw-rw-rw-

ToObject.js

126 B

-rw-rw-rw-

ToPrimitive.js

282 B

-rw-rw-rw-

ToPropertyDescriptor.js

1.41 KB

-rw-rw-rw-

ToPropertyKey.js

400 B

-rw-rw-rw-

ToString.js

389 B

-rw-rw-rw-

ToUint16.js

564 B

-rw-rw-rw-

ToUint32.js

175 B

-rw-rw-rw-

ToUint8.js

573 B

-rw-rw-rw-

ToUint8Clamp.js

515 B

-rw-rw-rw-

Type.js

244 B

-rw-rw-rw-

ValidateAndApplyPropertyDescri...

4.86 KB

-rw-rw-rw-

ValidateTypedArray.js

780 B

-rw-rw-rw-

WeekDay.js

208 B

-rw-rw-rw-

YearFromTime.js

407 B

-rw-rw-rw-

abs.js

207 B

-rw-rw-rw-

floor.js

217 B

-rw-rw-rw-

max.js

176 B

-rw-rw-rw-

min.js

176 B

-rw-rw-rw-

modulo.js

168 B

-rw-rw-rw-

msFromTime.js

253 B

-rw-rw-rw-

thisBooleanValue.js

332 B

-rw-rw-rw-

thisNumberValue.js

355 B

-rw-rw-rw-

thisStringValue.js

326 B

-rw-rw-rw-

thisTimeValue.js

262 B

-rw-rw-rw-

Code Editor : ArraySetLength.js

'use strict';

var $RangeError = require('es-errors/range');
var $TypeError = require('es-errors/type');

var assign = require('object.assign');

var isPropertyDescriptor = require('../helpers/records/property-descriptor');

var IsArray = require('./IsArray');
var IsDataDescriptor = require('./IsDataDescriptor');
var OrdinaryDefineOwnProperty = require('./OrdinaryDefineOwnProperty');
var OrdinaryGetOwnProperty = require('./OrdinaryGetOwnProperty');
var ToNumber = require('./ToNumber');
var ToString = require('./ToString');
var ToUint32 = require('./ToUint32');

// https://262.ecma-international.org/6.0/#sec-arraysetlength

// eslint-disable-next-line max-statements, max-lines-per-function
module.exports = function ArraySetLength(A, Desc) {
	if (!IsArray(A)) {
		throw new $TypeError('Assertion failed: A must be an Array');
	}
	if (!isPropertyDescriptor(Desc)) {
		throw new $TypeError('Assertion failed: Desc must be a Property Descriptor');
	}
	if (!('[[Value]]' in Desc)) {
		return OrdinaryDefineOwnProperty(A, 'length', Desc);
	}
	var newLenDesc = assign({}, Desc);
	var newLen = ToUint32(Desc['[[Value]]']);
	var numberLen = ToNumber(Desc['[[Value]]']);
	if (newLen !== numberLen) {
		throw new $RangeError('Invalid array length');
	}
	newLenDesc['[[Value]]'] = newLen;
	var oldLenDesc = OrdinaryGetOwnProperty(A, 'length');
	if (!IsDataDescriptor(oldLenDesc)) {
		throw new $TypeError('Assertion failed: an array had a non-data descriptor on `length`');
	}
	var oldLen = oldLenDesc['[[Value]]'];
	if (newLen >= oldLen) {
		return OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
	}
	if (!oldLenDesc['[[Writable]]']) {
		return false;
	}
	var newWritable;
	if (!('[[Writable]]' in newLenDesc) || newLenDesc['[[Writable]]']) {
		newWritable = true;
	} else {
		newWritable = false;
		newLenDesc['[[Writable]]'] = true;
	}
	var succeeded = OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
	if (!succeeded) {
		return false;
	}
	while (newLen < oldLen) {
		oldLen -= 1;
		// eslint-disable-next-line no-param-reassign
		var deleteSucceeded = delete A[ToString(oldLen)];
		if (!deleteSucceeded) {
			newLenDesc['[[Value]]'] = oldLen + 1;
			if (!newWritable) {
				newLenDesc['[[Writable]]'] = false;
				OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
				return false;
			}
		}
	}
	if (!newWritable) {
		return OrdinaryDefineOwnProperty(A, 'length', { '[[Writable]]': false });
	}
	return true;
};

${this.title}

Code Editor : ArraySetLength.js