mirror of
https://github.com/actions/setup-python
synced 2024-11-30 21:22:28 +08:00
43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
|
var constant = require('./constant'),
|
||
|
|
createInverter = require('./_createInverter'),
|
||
|
|
identity = require('./identity');
|
||
|
|
|
||
|
|
/** Used for built-in method references. */
|
||
|
|
var objectProto = Object.prototype;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Used to resolve the
|
||
|
|
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
|
||
|
|
* of values.
|
||
|
|
*/
|
||
|
|
var nativeObjectToString = objectProto.toString;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates an object composed of the inverted keys and values of `object`.
|
||
|
|
* If `object` contains duplicate values, subsequent values overwrite
|
||
|
|
* property assignments of previous values.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 0.7.0
|
||
|
|
* @category Object
|
||
|
|
* @param {Object} object The object to invert.
|
||
|
|
* @returns {Object} Returns the new inverted object.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* var object = { 'a': 1, 'b': 2, 'c': 1 };
|
||
|
|
*
|
||
|
|
* _.invert(object);
|
||
|
|
* // => { '1': 'c', '2': 'b' }
|
||
|
|
*/
|
||
|
|
var invert = createInverter(function(result, value, key) {
|
||
|
|
if (value != null &&
|
||
|
|
typeof value.toString != 'function') {
|
||
|
|
value = nativeObjectToString.call(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
result[value] = key;
|
||
|
|
}, constant(identity));
|
||
|
|
|
||
|
|
module.exports = invert;
|