To check if a Javascript String Contains a substring or not, we can use 7 different Javascript methods as listed in below table.
Related Topics: JavaScript - Detect if a string contains any space How to check if String contains only spaces in JavaScript Share this: EmailFacebookTwitterWhatsappLinkedInReddit
How do you check if one string contains a substring in JavaScript?Craig Buckler
Check if a string includes "world": lettext ="Hello world, welcome to the universe."; letresult = text.includes("world"); Try it Yourself » More examples below. Description Theincludes()method returnstrueif a string contains a specified string. ...
JavaScript String includes() Theincludes()method returns true if a string contains a specified value. Otherwise it returnsfalse. Examples Check if a string includes "world": lettext ="Hello world, welcome to the universe."; text.includes("world"); ...
Thematch()method returns the result of matching astringagainst aregular expression. Example constmessage ="JavaScript is a fun programming language.";// regular expression that checks if message contains 'programming'constexp =/programming/;
String 基本类型(null, undefined, bool, number, string)应该是值类型,没有属性和方法。 内置对象 Javascript 有一系列内置对象来创建语言的基本功能,具体有如下几种 Boolean Boolean 对象表示两个值:true或false。 当作为一个构造函数(带有运算符 new)调用时,Boolean() 将把它的参数转换成一个布尔值,并且返回一...
matcher(pwd); if (matcher.find()) { return "包含生日或者身份证"; } else { return "ok"; } } /*** * 描述: 密码规则 * * @param pwd 密码 * @return String */ public static String checkp(String pwd) { String str = "^(?![a-zA-Z]+$)(?![A-Z0-9]+$)(?![A-Z\\W_!@...
If activated 'template', 'content' and 'title' options will be sanitized. whiteList object Default value Object which contains allowed attributes and tags sanitizeFn null | function null Here you can supply your own sanitize function. This can be useful if you prefer to use a dedicated library...
whiteList object Default value Object which contains allowed attributes and tags sanitizeFn null | function null Here you can supply your own sanitize function. This can be useful if you prefer to use a dedicated library to perform sanitization. Data attributes for individual tooltips Options for in...