Gecko [ gandhischool.edu.np ]

Name	Size	Permission
async-return-type.d.ts	715 B	-rw-rw-rw-
asyncify.d.ts	1.19 KB	-rw-rw-rw-
basic.d.ts	1.62 KB	-rw-rw-rw-
conditional-except.d.ts	1012 B	-rw-rw-rw-
conditional-keys.d.ts	1.17 KB	-rw-rw-rw-
conditional-pick.d.ts	933 B	-rw-rw-rw-
entries.d.ts	2.42 KB	-rw-rw-rw-
entry.d.ts	2.7 KB	-rw-rw-rw-
except.d.ts	886 B	-rw-rw-rw-
fixed-length-array.d.ts	1.45 KB	-rw-rw-rw-
iterable-element.d.ts	1.25 KB	-rw-rw-rw-
literal-union.d.ts	1.11 KB	-rw-rw-rw-
merge-exclusive.d.ts	1.31 KB	-rw-rw-rw-
merge.d.ts	531 B	-rw-rw-rw-
mutable.d.ts	1.76 KB	-rw-rw-rw-
opaque.d.ts	2.61 KB	-rw-rw-rw-
package-json.d.ts	13.74 KB	-rw-rw-rw-
partial-deep.d.ts	2.26 KB	-rw-rw-rw-
promisable.d.ts	775 B	-rw-rw-rw-
promise-value.d.ts	1.03 KB	-rw-rw-rw-
readonly-deep.d.ts	1.79 KB	-rw-rw-rw-
require-at-least-one.d.ts	848 B	-rw-rw-rw-
require-exactly-one.d.ts	1.23 KB	-rw-rw-rw-
set-optional.d.ts	911 B	-rw-rw-rw-
set-required.d.ts	914 B	-rw-rw-rw-
set-return-type.d.ts	1.66 KB	-rw-rw-rw-
simplify.d.ts	133 B	-rw-rw-rw-
stringified.d.ts	416 B	-rw-rw-rw-
tsconfig-json.d.ts	16.44 KB	-rw-rw-rw-
typed-array.d.ts	363 B	-rw-rw-rw-
union-to-intersection.d.ts	1.92 KB	-rw-rw-rw-
utilities.d.ts	322 B	-rw-rw-rw-
value-of.d.ts	829 B	-rw-rw-rw-

Name

Size

Permission

Action

async-return-type.d.ts

715 B

-rw-rw-rw-

asyncify.d.ts

1.19 KB

-rw-rw-rw-

basic.d.ts

1.62 KB

-rw-rw-rw-

conditional-except.d.ts

1012 B

-rw-rw-rw-

conditional-keys.d.ts

1.17 KB

-rw-rw-rw-

conditional-pick.d.ts

933 B

-rw-rw-rw-

entries.d.ts

2.42 KB

-rw-rw-rw-

entry.d.ts

2.7 KB

-rw-rw-rw-

except.d.ts

886 B

-rw-rw-rw-

fixed-length-array.d.ts

1.45 KB

-rw-rw-rw-

iterable-element.d.ts

1.25 KB

-rw-rw-rw-

literal-union.d.ts

1.11 KB

-rw-rw-rw-

merge-exclusive.d.ts

1.31 KB

-rw-rw-rw-

merge.d.ts

531 B

-rw-rw-rw-

mutable.d.ts

1.76 KB

-rw-rw-rw-

opaque.d.ts

2.61 KB

-rw-rw-rw-

package-json.d.ts

13.74 KB

-rw-rw-rw-

partial-deep.d.ts

2.26 KB

-rw-rw-rw-

promisable.d.ts

775 B

-rw-rw-rw-

promise-value.d.ts

1.03 KB

-rw-rw-rw-

readonly-deep.d.ts

1.79 KB

-rw-rw-rw-

require-at-least-one.d.ts

848 B

-rw-rw-rw-

require-exactly-one.d.ts

1.23 KB

-rw-rw-rw-

set-optional.d.ts

911 B

-rw-rw-rw-

set-required.d.ts

914 B

-rw-rw-rw-

set-return-type.d.ts

1.66 KB

-rw-rw-rw-

simplify.d.ts

133 B

-rw-rw-rw-

stringified.d.ts

416 B

-rw-rw-rw-

tsconfig-json.d.ts

16.44 KB

-rw-rw-rw-

typed-array.d.ts

363 B

-rw-rw-rw-

union-to-intersection.d.ts

1.92 KB

-rw-rw-rw-

utilities.d.ts

322 B

-rw-rw-rw-

value-of.d.ts

829 B

-rw-rw-rw-

Code Editor : conditional-keys.d.ts

/**
Extract the keys from a type where the value type of the key extends the given `Condition`.

Internally this is used for the `ConditionalPick` and `ConditionalExcept` types.

@example
```
import {ConditionalKeys} from 'type-fest';

interface Example {
	a: string;
	b: string | number;
	c?: string;
	d: {};
}

type StringKeysOnly = ConditionalKeys<Example, string>;
//=> 'a'
```

To support partial types, make sure your `Condition` is a union of undefined (for example, `string | undefined`) as demonstrated below.

@example
```
type StringKeysAndUndefined = ConditionalKeys<Example, string | undefined>;
//=> 'a' | 'c'
```
*/
export type ConditionalKeys<Base, Condition> = NonNullable<
	// Wrap in `NonNullable` to strip away the `undefined` type from the produced union.
	{
		// Map through all the keys of the given base type.
		[Key in keyof Base]:
			// Pick only keys with types extending the given `Condition` type.
			Base[Key] extends Condition
				// Retain this key since the condition passes.
				? Key
				// Discard this key since the condition fails.
				: never;

// Convert the produced object into a union type of the keys which passed the conditional test.
	}[keyof Base]
>;

${this.title}

Code Editor : conditional-keys.d.ts