Use the includes() method to search for a substring inside a string: var word = "bravery"; console.log(word.includes(“rave”)); // true Copy Syntax This quick and easy way to check if one string contains another is very simple to implement. Just call the method with the substring ...
JS Array Methods This JavaScript tutorial explains how to use the string method called includes() with syntax and examples. Description In JavaScript, includes() is a string method that determines whether a substring is found in a string. Because the includes() method is a method of the Strin...
letstr ='JavaScript String';console.log(str.includes('Script')); 输出: true 如前所述,includes() 匹配字符串区分大小写,因此,以下示例返回 false: letstr ='JavaScript String';console.log(str.includes('script')); 输出: f...
JavaScript String 0 - This is a modal window. No compatible source was found for this media. htmlheadtitleJavaScript StringMethodtitleheadbodyscriptstrsearchStringdocumentstrdocumentsearchStringdocument.write(str.includes(searchString));}catch(error){document.write("",error);} Output Once the above p...
js string includes方法 js string includes方法 **JavaScript String includes方法详解** 一、概述 在JavaScript中，String对象提供了一个名为includes的方法，该方法用于检查一个字符串是否包含另一个字符串。本文将详细介绍该方法的用法，包括其语法、参数及返回值等。二、语法 String.prototype.includes(search, start...
1、includes()方法区分大小写。2、如果搜索字符串为空，则返回true。3、如果指定的起始位置大于或等于字符串长度，则始终返回false。六、常用在哪里 includes()方法常用于在字符串中搜索特定的子字符串。它用于验证用户输入是否包含特定的字符或单词，也可以用于搜索字符串数组中的元素。此外，它还可以用于过滤和排序...
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. ...
To check if a string contains a substring using String.includes() in JavaScript: Call the String.includes() method on the string. Pass the substring as a parameter, e.g. String.includes(substr). The String.includes() method returns true if the substring is contained in the string. ...
includes() 方法用于判断字符串是否包含指定的子字符串。 如果找到匹配的字符串则返回 true,否则返回 false。 注意: includes() 方法区分大小写。 浏览器支持 方法 includes() 41 12.0 40 9 28 语法 string.includes(searchvalue, start) 参数值 参数描述 searchvalue 必需,要查找的字符串。 start 可选,设置...
js兼容IE string includes 当前对象 在一开始学习js的时候,从基础语法到动画的学习过程中,不得不提的一点就是兼容性处理 为什么会有兼容性处理???一开始的时候微软一家独大,认为他自己就是标准,然而后来各种浏览器百花争放,不同浏览器支持的属性有所不同.如果我们做一个基本的网页,那用户装各种浏览器的都有....