Number:整数或浮点数,还有一些特殊值(-Infinity、+Infinity、NaN) String:一串表示文本值的字符序列 Symbol:一种实例是唯一且不可改变的数据类型 (在es10中加入了第七种原始类型BigInt,现已被最新Chrome支持) 对象类型 Object:自己分一类丝毫不过分,除了常用的Object,Array、Function等都属于特殊的对象 二、为什么区分...
window.onerror = function (message, url, lineNo, columnNo, error) 五个参数的含义如下: 1、message {String} 错误信息。直观的错误描述信息,不过有时候你确实无法从这里面看出端倪,特别是压缩后脚本的报错信息,可能让你更加疑惑。 2、url {String} 发生错误对应的脚本路径,比如是你的http://a.js报错了还是...
`[${moduleName}]`:'[LoggerService] ';letlevelOutput:string=`[${logEvent.level}]${messageOutput}`;// 根据日志级别,用不同颜色区分switch(logEvent.level.toString()){caseLoggerLevel.DEBUG:levelOutput=Chalk.green(levelOutput);break;caseLoggerLevel.INFO:levelOutput=Chalk.cyan(levelOutput);break;cas...
ascii编码 String对象提供charCodeAt()、fromCharCode()两个方法可以实现ascii与字符间的转换 // 字符转ascii'a'.charCodeAt();// ascii转字符String.fromCharCode('97') 可以搭配eval()函数实现混淆,将字符串转换成代码执行 // 变化前varaaa='hello';console.log(aaa);// 变化后vartest=[10,32,32,32,32,32...
max_line_len (default: false)— maximum line length (for uglified code) preamble (default: null)— when passed it must be a string and it will be prepended to the output literally. The source map will adjust for this text. Can be used to insert a comment containing licensing informati...
// 如果以上情况都没发生,报错 return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, ' + 'but the following object was passed: "' + String(ret.value) + '"')); 以上是核心代码说明。之前我们讲了co实际有2种api,有参数和无参数的,很明显以上是...
#stringurl = env("DATABASE_URL")}model Posts {id String @default(cuid()) @idtitle Stringpublished Boolean @default(false)author User? @relation(fields: [authorId], references: [id])authorId String?createdAt DateTime @default(now())}// Necessary for Next authmodel Account {id String @id...
Example usage of beautifying a json string: constoptions={indent_size:2,space_in_empty_paren:true}constdataObj={completed:false,id:1,title:"delectus aut autem",userId:1,}constdataJson=JSON.stringify(dataObj)js_beautify(dataJson,options)/* OUTPUT{"completed": false,"id": 1,"title": "delec...
var myString = "Every good boy does fine."; 2.字符串连接 var myString = "Every " + "good boy " + "does fine."; var myString = "Every "; myString += "good boy does fine."; 3.截取字符串 //截取第 6 位开始的字符 var myString = "Every good boy does fine."; ...
The parameter message is a string containing the message for the entry. The parameter level is a number indicating the Simphony log level severity for the entry: level valueSimphony log level -99 NONE -3 LOG_ALWAYS_ERROR -2 LOG_ALWAYS_WARN -1 LOG_ALWAYS_INFO 0 LOG_ALWAYS_DEBUG 0 LOG_AL...