| Path : /var/www/html/infraai.ai/frontend/node_modules/underscore/modules/ |
|
B-Con CMD Config cPanel C-Rdp D-Log Info Jump Mass Ransom Symlink vHost Zone-H |
| Current File : /var/www/html/infraai.ai/frontend/node_modules/underscore/modules/_methodFingerprint.js |
import getLength from './_getLength.js';
import isFunction from './isFunction.js';
import allKeys from './allKeys.js';
// Since the regular `Object.prototype.toString` type tests don't work for
// some types in IE 11, we use a fingerprinting heuristic instead, based
// on the methods. It's not great, but it's the best we got.
// The fingerprint method lists are defined below.
export function ie11fingerprint(methods) {
var length = getLength(methods);
return function(obj) {
if (obj == null) return false;
// `Map`, `WeakMap` and `Set` have no enumerable keys.
var keys = allKeys(obj);
if (getLength(keys)) return false;
for (var i = 0; i < length; i++) {
if (!isFunction(obj[methods[i]])) return false;
}
// If we are testing against `WeakMap`, we need to ensure that
// `obj` doesn't have a `forEach` method in order to distinguish
// it from a regular `Map`.
return methods !== weakMapMethods || !isFunction(obj[forEachName]);
};
}
// In the interest of compact minification, we write
// each string in the fingerprints only once.
var forEachName = 'forEach',
hasName = 'has',
commonInit = ['clear', 'delete'],
mapTail = ['get', hasName, 'set'];
// `Map`, `WeakMap` and `Set` each have slightly different
// combinations of the above sublists.
export var mapMethods = commonInit.concat(forEachName, mapTail),
weakMapMethods = commonInit.concat(mapTail),
setMethods = ['add'].concat(commonInit, forEachName, hasName);