replace() 方法用于在字符串中用一些字符替换另一些字符,或替换一个与正则表达式匹配的子串。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 //replace(substr, replacetext) var myString = '999 JavaScript Coders'; console.log(myString.replace(/JavaScript
document.write(str.replace(/Microsoft/g,"W3School")) 输出: Welcome to W3School! We are proud to announce that W3School has one of the largest Web Developers sites in the world. 例子3 您可以使用本例提供的代码来确保匹配字符串大写字符的正确: text = "javascript Tutorial"; text.replace(/javasc...
//replace(substr, replacetext)varmyString ='999 JavaScript Coders';console.log(myString.replace(/JavaScript/i,"jQuery"));//output: 999 jQuery Coders//replace(regexp, replacetext)varmyString ='999 JavaScript Coders';console.log(myString.replace(newRegExp...
A stringA new string where the specified value(s) has been replaced. More Examples A global, case-insensitive replacement: lettext ="Mr Blue has a blue house and a blue car"; letresult = text.replace(/blue/gi,"red"); Try it Yourself » ...
String.prototype.trim() 浏览器兼容脚本 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if(!String.prototype.trim){String.prototype.trim=function(){returnthis.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,'');};} 3.jQuery源码分析 ...
Example 1: Replace the first occurrence consttext ="Java is awesome. Java is fun."// passing a string as the first parameter letpattern ="Java";letnew_text = text.replace(pattern,"JavaScript"); console.log(new_text);// passing a regex as the first parameter ...
DOCTYPE html>234567/*8这段代码是为JavaScript的String对象添加一个LiminReplace 方法,9用以替换字符串中得HTML字符(把"替换为”,<替换为<,>替换为>),10*/1112//在String对象的原型中添加自定方法13String.prototype.LiminReplace=function() {14//定义要替换的Json对象15varRplJson={16//"First": "quot...
String.prototype.link()已弃用 (链接 URL) String.prototype.small()已弃用 String.prototype.strike()已弃用 String.prototype.sub()已弃用 String.prototype.sup()已弃用 请注意,这些方法不会检查字符串本身是否包含 HTML 标记,因此可能会创建无效的 HTML: jsCopy to Clipboard "".bold();// 它们所...
String replace() String replaceAll() String split() JavaScript String Length Thelengthproperty returns the length of a string: Example lettext ="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; letlength = text.length; Try it Yourself » Extracting String Characters ...
3. 组合使用其他字符串方法:与其他字符串方法(如trim(),split(),substring(),replace()等)配合,可以实现更复杂的文本处理逻辑。 const sentence = "A quick brown fox jumps over the lazy dog."; const wordToFind = "fox"; const words = sentence.split(' '); ...