Constnium/node_modules/object-keys/index.js
2022-06-23 02:27:43 +02:00

32 lines
823 B
JavaScript

'use strict';
var slice = Array.prototype.slice;
var isArgs = require('./isArguments');
var origKeys = Object.keys;
var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');
var originalKeys = Object.keys;
keysShim.shim = function shimObjectKeys() {
if (Object.keys) {
var keysWorksWithArguments = (function () {
// Safari 5.0 bug
var args = Object.keys(arguments);
return args && args.length === arguments.length;
}(1, 2));
if (!keysWorksWithArguments) {
Object.keys = function keys(object) { // eslint-disable-line func-name-matching
if (isArgs(object)) {
return originalKeys(slice.call(object));
}
return originalKeys(object);
};
}
} else {
Object.keys = keysShim;
}
return Object.keys || keysShim;
};
module.exports = keysShim;