创建阶段 executionContextObj={//作用域链'scopeChain':{/* 变量对象 + 所有父级执行上下文中的变量对象 */},// 变量对象'variableObject':{/* 函数参数 / 参数, 内部变量以及函数声明 */},'this':{}} 2 - 变量对象 (Variable Object) 可能用到的知识点:[JS] 声明提升 (变量 函数声明) 2.1 - 创建...
mykeyValues){//没有则跳出if(!obj["mykey"]){returnmykeyValues;}else{//有就放入mykeyValues.push(obj["mykey"]);//再次递归varkeys=Object.keys(obj);keys.forEach(function(i){getMykey(obj[i],mykeyValues
console.log(pet); // {type:'Dog', name:'Tommy'} 17,Object[key]简写 考虑一个验证函数:functionvalidate(values) {if(!values.first)returnfalse;if(!values.last)returnfalse;returntrue; }console.log(validate({first:'Bruce',last:'Wayne'}));// true假设当需要不同域和规则来验证,能否编写一个通...
When the ES module is loaded successfully by require(), the returned object will either be a ES module namespace object similar to what's returned by import(), or what gets exported as "module.exports" in the ES module. Users can check process.features.require_module to see whether ...
parse (default: {})— pass an object if you wish to specify some additional parse options. sourceMap (default: false)— pass an object if you wish to specify source map options. toplevel (default: false)— set to true if you wish to enable top level variable and function name mangling...
classProxySandBox{proxyWindow;isRunning=false;active(){this.isRunning=true;}inactive(){this.isRunning=false;}constructor(){constfakeWindow=Object.create(null);this.proxyWindow=newProxy(fakeWindow,{set:(target,prop,value,receiver)=>{if(this.isRunning){target[prop]=value;}},get:(target,prop,...
function renderApplication<Props: Object>( RootComponent: React.ComponentType<Props>, initialProps: Props, rootTag: any, WrapperComponent?: ?React.ComponentType<*>, fabric?: boolean, showFabricIndicator?: boolean, ) { invariant(rootTag, 'Expect to have a valid rootTag, instead got ', rootTag...
we have a custom class that takes a variable from a JS Object as input and adds setter/getter methods that track read and write operations to the variable itself. Calling a setter indicates that a variable may have been updated, and we can then run some differential logic on it to confirm...
该选项用于决定是否使用 Object.freeze() 冻结动态访问的引入对象的命名空间(例如 import * as namespaceImportObject from...)。output.indent类型: boolean | string CLI: --indent/--no-indent 默认: true该选项用于指定代码缩进的缩进字符串(在 amd,iife,umd 和system 格式中)。它的值可以是 false (...
TypeObjectNotAvailable 6010 이 형식의 형식 개체를 사용할 수 없습니다. UncaughtException 5022 예외가 Throw되었지만 Catch하지 못했습니다. UndeclaredVariable 1135 변수가 선언되지 않았습니다. UndefinedIdentifier 5009 정의...