既然用了 indexOf,那么不妨再加上 filter。 function unique(a) { var res = a.filter(function(item, index, array) { return array.indexOf(item) === index; }); return res; } var a = [1, 1, '1', '2', 1]; var ans = unique(a);...
1 Array.prototype.unique1 = function () { 2 var n = []; //一个新的临时数组 3 for (var i = 0; i < this.length...; i++) //遍历当前数组 4 { 5 //如果当前数组的第i已经保存进了临时数组,那么跳过, 6 //否则把当前项push到临时数组里面7 if (n.indexOf...n; 10 }; 11 12 ...
If there are two items in the Stars array and three in the Cast array, all five items’ content will be rendered. This is a good situation to use the #data keyword, too, if the items in the arrays aren’t objects (with properties) but simple string values. For example...
Become a sponsor or a backer if you are interested in core-js: Open Collective, Patreon, Boosty, Bitcoin ( bc1qlea7544qtsmj2rayg0lthvza9fau63ux0fstcz ), Alipay.Example of usage:import 'core-js/actual'; Promise.resolve(42).then(it => console.log(it)); // => 42 Array.from(new...
13、isArrayLike:检查 value 是否是类数组 如果一个值被认为是类数组,那么它不是一个函数,并且value.length是个整数,大于等于 0,小于或等于 Number.MAX_SAFE_INTEGER。这里字符串也将被当作类数组 代码语言:javascript 复制 functionisArrayLike(value){returnvalue!=null&&isLength(value.length)&&!isFunction(value...
vue-array - Array object operation under Vue, Array object operation under Vue Use this package to manipulate the array. Vue can monitor the changes in the array Laqu-l - A complete App starter kit with Quasar Framework, GraphQL API backend with OAUTH 2.0 authentication, Firebase ready, mult...
Children elements inside v-for should be keyed as any element in Vue.js. Be carefull to provide revelant key values in particular: typically providing array index as keys won't work as key should be linked to the items content cloned elements should provide updated keys, it is doable using...
dependencies: array-includes: ^3.1.6 array.prototype.flat: ^1.3.1 object.assign: ^4.1.4 object.values: ^1.1.6 checksum: f4b05fa4d7b5234230c905cfa88d36dc8a58a6666975a3891429b1a8cdc8a140bca76c297225cb7a499fad25a2c052ac93934449a2c31a44fc9edd06c773780a languageName: node ...
(var key in propOptions) {\n props[key] = validateProp(key, propOptions, propsData);\n }\n }\n var vnode = Ctor.options.render.call(\n null,\n // ensure the createElement function in functional components\n // gets a unique context - this is necessary for correct named slot ...
Later the framework will be copied either into your project directory (see Generating Applications with the Sencha CMD Tool) or in the document root of your web server. After unzipping the Ext JS distribution, you’ll find some files and folders there. There are several JavaScript files ...