直接使用String.prototype.match() 下面的例子中,String.prototype.match()将会查找一个以”Chapter”开头的,其后跟随一个或多个数字字符,数字字符后跟随另个或多个’.+数字字符’。在下面代码中正则表达式中有i修饰符,所以整个正则表达式忽略大小写。 varstr='For more information, see Chapter 3.4.5.1'; varre=...
What is the regular expression (in JavaScript if it matters) to only match if the text is an exact match? That is, there should be no extra characters at other end of the string. For example, if I'm trying to match forabc, then1abc1,1abc, andabc1would not match. 回答 Use the ...
stringObj.match(rgExp) 其中stringObj是必选项。对其进行查找的 String 对象或字符串文字。 rgExp是必选项。为包含正则表达式模式和可用标志的正则表达式对象。也可以是包含正则表达式模式和可用标志的变量名或字符串文字。 如果js中match函数方法没有找到匹配,返回 null。如果找到匹配返回一个数组并且更新全局 RegExp ...
JavaScript match() 方法 JavaScript String 对象 实例 在字符串中查找 'ain': [mycode3 type='js'] var str='The rain in SPAIN stays mainly in the plain'; var n=str.match(/ain/g); [/mycode3] n 输出数组结果值: ..
JS Array Methods JavaScript: String match() methodThis JavaScript tutorial explains how to use the string method called match() with syntax and examples.Description In JavaScript, match() is a string method that is used to find matches based on regular expression matching. Because the match() ...
match()方法相似,只是RegExp方法的参数是一个字符串,而String方法的参数是一个RegExp对象。exec()方法对一个指定的字符串执行一个正则表达式,简言之,就是在一个字符串中执行匹配...组成的数组。相比之下,exec()总是返回一个匹配结果,并提供关于本次匹配的完整信息。当调用exec()的正则表达式对象具有修饰符g时...
stringObject.match(searchvalue) //匹配正则,返回指定的值 stringObject.match(regexp) 使用match() 来检索一个字符串例子: 1.2.3.4.5.6. varstr="Hello world!"7. document.write(str.match("world")+"")8. document.write(str.match("World")+"")9. document.write(str.match("worlld")+"")10....
to see if it contains another string, there are two basic ways to do it. The first is to use 'indexOf' to find the position of the substring within the string. The second is to use 'match' or an equivalent method to find if a regular expression pattern can be found in the string...
A search for "ain" using a string: lettext ="The rain in SPAIN stays mainly in the plain"; text.match("ain"); Try it Yourself » A search for "ain" using a regular expression: lettext ="The rain in SPAIN stays mainly in the plain"; ...
String.match() String.match() match() 方法根据正则表达式在字符串中搜索匹配项,并将匹配项作为 Array 对象返回。 实例1 在字符串中搜索 "ain": let text = "The rain in SPAIN stays mainly in the plain"; text.match(/ain/g) // 返回数组 [ain,ain,ain]...