Function.prototype.myBind = function (obj) { // 检查被绑定的是否为函数(假设此例为foo) if (typeof this !== 'function') { throw new TypeError('not a function'); } // 将foo传给that保存 var that = this, // 取出传入的参数 oldArr = Array.prototype.slice.call(arguments, 1), fnVoid ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 Function.prototype.toBind=function(context){varself=this;// 获取toBind函数从第二个参数到最后一个参数varargs=Array.prototype.slice.call(arguments,1);returnfunction(){// 这个时候的arguments是指bind返回的函数传入的参数varbindArgs=Array.prototype.slice....
javascripttest('Function.prototype.bind', function(){ function orig(){ return this.x; }; var bound = orig.bind({x: 'bind'}); equal(bound(), 'bind', 'invoke directly'); equal(bound.call({x: 'call'}), 'bind', 'invoke by call'); equal(bound.apply({x: 'apply'}), 'bind', ...
Function.prototype.bind=Function.prototype.bind||function(){varfn =this, presetArgs = [].slice.call(arguments);varcontext = presetArgs.shift();varstrOfThis = fn.toString();// 函数反序列化,用于获取this的形参varfpsOfThis =/^function[^()]*\((.*?)\)/i.exec(strOfThis)[1].trim().spl...
Because of that, prototype methods transformed into static methods like in examples above. But with transpilers, we can use one more trick - bind operator and virtual methods. Special for that, available /virtual/ entry points. Example: import fill from 'core-js-pure/actual/array/virtual/fill...
Autopolyfiller — Precise polyfills. This is like Autoprefixer, but for JavaScript polyfills. - azproduction/autopolyfiller
JavaScript 1.X String Extras-ref String prototype:trimLeft,trimRight,quote HTML script-tests-living standard document.head(for IE8-) 'shiv' of newer HTML elements (section,aside, etc), to fix parsing (for IE8-) datasetanddata-*attributesspec(for IE8+, not available in IE7-) ...
It is still far from being complete, so not everything might work as expected, but in general it works OK. This library will provide a good enough environment for JavaScript transpilers to work correctly, such asBabel. Here is the list of polyfills: ...
巴别塔医生说要使用它,你需要: (1) 安装插件: npm install --save-dev @babel/plugin-proposal-function-bind (2) 将其添加到您的Babel配置中: { "plugins": ["@babel/plugin-proposal-function-bind"]} 或者,您可以回到旧的语法,而不使用Babel: this.on('client:beforeCommand', (...args) => this...
In应该更好地在用户正在处理的真实代码中完成。 Better scanf(): if (scanf("%d", 尽管存在Babel配置,但Babel无法解析双冒号 巴别塔医生说要使用它,你需要: (1) 安装插件: npm install --save-dev @babel/plugin-proposal-function-bind (2) 将其添加到您的Babel配置中: { "plugins": ["@babel/...