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67 lines
3.2 KiB
TypeScript
67 lines
3.2 KiB
TypeScript
interface Array<T> {
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/**
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* Returns the value of the first element in the array where predicate is true, and undefined
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* otherwise.
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* @param predicate find calls predicate once for each element of the array, in ascending
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* order, until it finds one where predicate returns true. If such an element is found, find
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* immediately returns that element value. Otherwise, find returns undefined.
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* @param thisArg If provided, it will be used as the this value for each invocation of
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* predicate. If it is not provided, undefined is used instead.
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*/
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find(predicate: (value: T, index: number, obj: Array<T>) => boolean, thisArg?: any): T;
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/**
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* Returns the index of the first element in the array where predicate is true, and undefined
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* otherwise.
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* @param predicate find calls predicate once for each element of the array, in ascending
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* order, until it finds one where predicate returns true. If such an element is found, find
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* immediately returns that element value. Otherwise, find returns undefined.
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* @param thisArg If provided, it will be used as the this value for each invocation of
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* predicate. If it is not provided, undefined is used instead.
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*/
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findIndex(predicate: (value: T) => boolean, thisArg?: any): number;
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/**
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* Returns the this object after filling the section identified by start and end with value
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* @param value value to fill array section with
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* @param start index to start filling the array at. If start is negative, it is treated as
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* length+start where length is the length of the array.
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* @param end index to stop filling the array at. If end is negative, it is treated as
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* length+end.
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*/
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fill(value: T, start?: number, end?: number): T[];
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/**
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* Returns the this object after copying a section of the array identified by start and end
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* to the same array starting at position target
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* @param target If target is negative, it is treated as length+target where length is the
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* length of the array.
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* @param start If start is negative, it is treated as length+start. If end is negative, it
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* is treated as length+end.
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* @param end If not specified, length of the this object is used as its default value.
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*/
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copyWithin(target: number, start: number, end?: number): T[];
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}
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interface ArrayConstructor {
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/**
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* Creates an array from an array-like object.
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* @param arrayLike An array-like object to convert to an array.
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* @param mapfn A mapping function to call on every element of the array.
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* @param thisArg Value of 'this' used to invoke the mapfn.
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*/
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from<T, U>(arrayLike: ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): Array<U>;
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/**
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* Creates an array from an array-like object.
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* @param arrayLike An array-like object to convert to an array.
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*/
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from<T>(arrayLike: ArrayLike<T>): Array<T>;
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/**
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* Returns a new array from a set of elements.
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* @param items A set of elements to include in the new array object.
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*/
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of<T>(...items: T[]): Array<T>;
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} |