48 lines
1.4 KiB
TypeScript
48 lines
1.4 KiB
TypeScript
/* eslint-disable @typescript-eslint/no-this-alias */
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export const ArrayExtensions = () => {
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if ([].equals === undefined) {
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// eslint-disable-next-line no-extend-native
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Array.prototype.equals = function (array, strict = true) {
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if (!array) return false;
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if (arguments.length === 1) strict = true;
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if (this.length !== array.length) return false;
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for (let i = 0; i < this.length; i++) {
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if (this[i] instanceof Array && array[i] instanceof Array) {
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if (!this[i].equals(array[i], strict)) return false;
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} else if (strict && this[i] !== array[i]) {
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return false;
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} else if (!strict) {
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return this.sort().equals(array.sort(), true);
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}
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}
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return true;
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};
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}
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if ([].lastElement === undefined) {
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// eslint-disable-next-line no-extend-native
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Array.prototype.lastElement = function () {
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const instanceCheck = this;
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if (instanceCheck === undefined) {
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return undefined;
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} else {
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const instance = instanceCheck as [];
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return instance[instance.length - 1];
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}
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};
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}
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if ([].isEmpty === undefined) {
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// eslint-disable-next-line no-extend-native
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Array.prototype.isEmpty = function () {
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return this.length === 0;
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};
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}
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if ([].isNotEmpty === undefined) {
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// eslint-disable-next-line no-extend-native
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Array.prototype.isNotEmpty = function () {
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return this.length !== 0;
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};
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}
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};
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