ES6模块不是对象,而是通过export命令显示指定输出代码,再通过import输入。 import { stat, exists, readFile } from 'fs'; above:从fs加载“stat, exists, readFile” 三个方法,其他方法不加载, 2.ES6模块默认使用严格模式,无论是否声明“use strict” ES6 模块之中,顶层的this指向undefined,即不应该在顶层代码...
}// 执行代码constcode ='console.log(b)'// 白名单constwhiteList = ['console','b']// // 访问拦截constctxProxy= (ctx) =>newProxy(ctx, {has:(target, prop) =>{// 当返回false的时候会沿着作用域向上查找,true为在当前作用域进行查找if(whiteList.includes(prop)) {returnfalse}if(!target.has...
jsii-rosettawill use a number of workers equal to half the number of CPU cores, up to a maximum of 16 workers. This default maximum can be overridden by setting theJSII_ROSETTA_MAX_WORKER_COUNTenvironment variable. If you get out of memory errors running too many workers, run a command ...
constarr=[10,12,14,16]constrealNum=10constfakeNum=20constrealNumIndex=arr.indexOf(realNum)constnoneNumIndex=arr.indexOf(fakeNum)// 普通方式if(realNumIndex>-1){console.log(realNum,' exists!')}elseif(realNumIndex===-1){console.log(realNum,' does not exist!')}if(noneNumIndex>-1){...
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,...
If an ENVIRONMENT variable exists in all upper case with the sep character relpaced by underscores, e.g._Then the environment variable overrides any values in the configuration files. On a get, if there is no matching environment variable, no config file value, default config value, or defaul...
import java.net.URLDecoder; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * 说明:ini...文件读写操作工具类 * 作者:FH Admin * from:fhadmin.cn */ pub...
if( array_key_exists( "code", $_GET ) && $_GET[ 'code' ] != NULL ) { $code = $_GET['code']; echo eval(code); } else { highlight_file(__FILE__); } ?> js中捕获异常堆栈信息—Error().stack。传入 发现是vm2的沙盒逃逸。
To check if a variable is a moment object, use moment.isMoment(). moment.isMoment() // false moment.isMoment(new Date()) // false moment.isMoment(moment()) // true From version 2.11.0, you can also test for a moment object by instanceof operator: moment() instanceof moment //...
Packages likeeslintthat get published to the npm registry do not include lock files.npm install eslintas a user will respect version constraints in ESLint'spackage.json. ESLint and its dependencies will be included in the user's lock file if one exists, but ESLint's own lock file would...