1、简单了解 首先这三个方法返回的数据类型就是不一样的。valueOf()返回的是这个对象本身,可能是object、number等等。但是tolocaleString()和toString()顾名思义就是转换为字符串类型。 其次,locale的意思就是本地,也就是转换为本地环境字符串。如果是全球范围内使用的话,则tolocaleString()之间会有很大区别。所以这...
valueOf:返回一个 Number 对象的基本数字值。 toString():把数字转换为字符串,使用指定的基数。 toLocalString():把数字转换为字符串,使用本地数字格式顺序。 六、JS String 例子: varstring=newString("abc");console.log(string.valueOf());console.log(string.toString()); ...
functionNumber(value){varresult;//用于保存转换后的值switch(typeofvalue){case"number": result=value;break;case"string"://将String转为Numberbreak;//...省略数值转换的部分}if(this===window ||this=== undefiend ||this===null){returnresult; }else{//定义基本包装类的函数this.toFixed =function(...
prototypeAllows you to add properties and methods to an object toExponential(x)Converts a number into an exponential notation toFixed(x)Formats a number with x numbers of digits after the decimal point toLocaleString()Converts a number into a string, based on the locale settings ...
十六、String 的扩展方法 一、模板字符串 一、去除字符串两侧空格 trim()不会去除字符串中间的空格 var str = " xi ao " var str1 = str.trim() console.log(str1)//xi ao 1. 2. 3. 一般用来去除控件的输入值的两侧空格。 二、字符串劈开成数组 ...
Gets a string representation of a number using exponential (scientific) notation. toFixed (JavaScript) Gets a string representation of a number using fixed-point notation. toLocaleString (Number - JavaScript) Gets a string representation of the Number object taking into account the host locale. toPre...
Get a date as string, using locale conventions: constd =newDate(); lettext = d.toLocaleString(); Try it Yourself » Description The toLocaleString() method returns a Date object as a string, using locale settings. The default language depends on the locale setup on your computer. ...
代码语言:javascript 复制 var number = 1337; var date = new Date(); var myArr = [number, date, 'foo']; var str = myArr.toLocaleString(); console.log(str); // logs '1337,6.12.2013 19:37:35,foo' // if run in a German (de-DE) locale with timezone Europe/Berlin...
For example, displaying a number is a locale-sensitive operation because the number should be formatted according to the conventions of the user's native country, region, or culture. You create a Locale object using one of the following constructors: new Locale(language:string) new Locale(...
constdateTimes=[{value:'3:00:00 PM'},{value:'4:00:00 PM'},{value:'5:00:00 PM'}]...