com.google.javascript.jscomp.js.es6.array.fill.js Maven / Gradle / Ivy
/*
* Copyright 2016 The Closure Compiler Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'require util/polyfill';
$jscomp.polyfill('Array.prototype.fill', function(orig) {
if (orig) return orig;
/**
* Fills elements of an array with a constant value.
*
* @this {!IArrayLike}
* @param {VALUE} value Value to fill.
* @param {number=} opt_start Start index, or zero if omitted.
* @param {number=} opt_end End index, or length if omitted.
* @return {!IArrayLike} The array, with the fill performed in-place.
* @template VALUE
* @suppress {reportUnknownTypes, strictPrimitiveOperators}
*/
var polyfill = function(value, opt_start, opt_end) {
var length = this.length || 0;
if (opt_start < 0) {
opt_start = Math.max(0, length + /** @type {number} */ (opt_start));
}
if (opt_end == null || opt_end > length) opt_end = length;
opt_end = Number(opt_end);
if (opt_end < 0) opt_end = Math.max(0, length + opt_end);
for (var i = Number(opt_start || 0); i < opt_end; i++) {
this[i] = value;
}
return this;
};
return polyfill;
}, 'es6', 'es3');