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Use every for equals

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This commit is contained in:
Matt Bierner
2019-05-30 17:01:10 -07:00
parent 55d6317a4f
commit a8a0fa763f
1 changed files with 11 additions and 10 deletions
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21
extensions/typescript-language-features/src/utils/arrays.ts
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@@ -2,18 +2,19 @@
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export function equals<T>(one: ReadonlyArray<T>, other: ReadonlyArray<T>, itemEquals: (a: T, b: T) => boolean = (a, b) => a === b): boolean {
if (one.length !== other.length) {
export function equals<T>(
a: ReadonlyArray<T>,
b: ReadonlyArray<T>,
itemEquals: (a: T, b: T) => boolean = (a, b) => a === b
): boolean {
if (a === b) {
return true;
}
if (a.length !== b.length) {
return false;
}
for (let i = 0, len = one.length; i < len; i++) {
if (!itemEquals(one[i], other[i])) {
return false;
}
}
return true;
return a.every((x, i) => itemEquals(x, b[i]));
}
export function flatten<T>(arr: ReadonlyArray<T>[]): T[] {