You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.4 KiB
43 lines
1.4 KiB
'use strict';
|
|
var $ = require('../internals/export');
|
|
var toObject = require('../internals/to-object');
|
|
var lengthOfArrayLike = require('../internals/length-of-array-like');
|
|
var setArrayLength = require('../internals/array-set-length');
|
|
var doesNotExceedSafeInteger = require('../internals/does-not-exceed-safe-integer');
|
|
var fails = require('../internals/fails');
|
|
|
|
var INCORRECT_TO_LENGTH = fails(function () {
|
|
return [].push.call({ length: 0x100000000 }, 1) !== 4294967297;
|
|
});
|
|
|
|
// V8 <= 121 and Safari <= 15.4; FF < 23 throws InternalError
|
|
// https://bugs.chromium.org/p/v8/issues/detail?id=12681
|
|
var properErrorOnNonWritableLength = function () {
|
|
try {
|
|
// eslint-disable-next-line es/no-object-defineproperty -- safe
|
|
Object.defineProperty([], 'length', { writable: false }).push();
|
|
} catch (error) {
|
|
return error instanceof TypeError;
|
|
}
|
|
};
|
|
|
|
var FORCED = INCORRECT_TO_LENGTH || !properErrorOnNonWritableLength();
|
|
|
|
// `Array.prototype.push` method
|
|
// https://tc39.es/ecma262/#sec-array.prototype.push
|
|
$({ target: 'Array', proto: true, arity: 1, forced: FORCED }, {
|
|
// eslint-disable-next-line no-unused-vars -- required for `.length`
|
|
push: function push(item) {
|
|
var O = toObject(this);
|
|
var len = lengthOfArrayLike(O);
|
|
var argCount = arguments.length;
|
|
doesNotExceedSafeInteger(len + argCount);
|
|
for (var i = 0; i < argCount; i++) {
|
|
O[len] = arguments[i];
|
|
len++;
|
|
}
|
|
setArrayLength(O, len);
|
|
return len;
|
|
}
|
|
});
|