/*---------------------------------------------------------------------------------------------

* Copyright (c) Microsoft Corporation. All rights reserved.

* Licensed under the MIT License. See License.txt in the project root for license information.

*--------------------------------------------------------------------------------------------*/

'use strict';

// tslint:disable:all

export namespace vscMockStrings {

/**

* Determines if haystack starts with needle.

*/

export function startsWith(haystack: string, needle: string): boolean {

if (haystack.length < needle.length) {

return false;

}

for (let i = 0; i < needle.length; i++) {

if (haystack[i] !== needle[i]) {

return false;

}

}

return true;

}

/**

* Determines if haystack ends with needle.

*/

export function endsWith(haystack: string, needle: string): boolean {

let diff = haystack.length - needle.length;

if (diff > 0) {

return haystack.indexOf(needle, diff) === diff;

} else if (diff === 0) {

return haystack === needle;

} else {

return false;

}

}

}