Example 1.The following function returns a string containing the formatted representation of a number padded with leading zeros. // This function returns a string padded with leading zeros function padZeros(num, totalLen) { var numStr = num.toString() // Initialize return value ...
The following function will pad a number with leading zeroes so the resulting string is "length" length. For example if length is 2 and the passed in number is 5 the value returned is 05. function pad(number, length) { var str = '' + number; while (str.length < length) { str = ...
let string = "1" + "0".repeat(100); // 1 followed by 100 zeros. BigInt(string) // => 10n**100n: one googol 与BigInt 值进行算术运算的方式与常规 JavaScript 数字的算术运算类似,只是除法会舍弃任何余数并向下取整(朝着零的方向): 代码语言:javascript 复制 1000n + 2000n // => 3000n 3...
(0) { 76 // function expression 77 function c() {} 78 } 79 } 80 81 // This function returns a string padded with leading zeros 82 function padZeros(num, totalLen) { 83 var numStr = num.toString(); // Initialize return value as string 84 var numZeros = totalLen - numStr....
// JavaScript's most important datatype is the object.// An object is a collection of name/value pairs, or a string to value map.letbook = {// Objects are enclosed in curly braces.topic:"JavaScript",// The property "topic" has value "JavaScript."edition:7// The property "edition" ...
技术标签:javascript es6Stringes6/es7javascript 文章目录 一、拓展用法 1.Unicode使用 2.标签模板 2.方法 1.includes() 2.startsWith() 3.endsWith() 4.补全字符padStart()、padEnd() 5.trimStart()、trimEnd() 总结 一、拓展用法 1.Unicode使用 ...
Add leading zero using padStart() in Javascript ThepadStart()method is used to pad a given string with another string until it reaches the given length. Syntax: string.padStart(targetLength, padstring) ThetargetLengthis the length of the final string after padding. ...
const string = "001".padStart(10, "0"); console.log(string); // "0000000001" // Add * to the end until the string has a length of 10. const string = "99".padEnd(10, "*"); console.log(string ); // "99***" 8. Count...
ES6 中有一个内置的标签函数:String.raw()。它返回反引号内的文本,不处理反斜杠转义: `\n`.length // => 1: 字符串有一个换行符 String.raw`\n`.length // => 2: 一个反斜杠字符和字母 n 请注意,即使标记模板字面量的标签部分是一个函数,也不需要在其调用中使用括号。在这种非常特殊的情况下,反...
我综合一下Prototype、mootools、dojo、EXT、Tangram、RightJS的一些方法,进行比较去重,在mass Framework为字符串添加如下扩展:contains、startsWith、endsWith、repeat、camelize、underscored、capitalize、stripTags、stripScripts、escapeHTML、unescapeHTML、escapeRegExp、truncate、wbr、pad,写框架的读者可以视自己的情况进行...