In JavaScript, there are several ways to replace all occurrences of a string within a larger string. One common method is to use the replace() function, which allows you to search for a specific string and repl
Example 3: Case-Insensitive Replacement consttext ="javaSCRIPT JavaScript"// the first occurrence of javascript is replacedletpattern =/javascript/i;// case-insensitive searchletnew_text = text.replace(pattern,"JS");console.log(new_text)// JS JavaScript// all occurrences of javascript is replaced...
示例2:不区分大小写的替换 consttext ="javaSCRIPT JavaScript";// all occurrences of javascript is replacedletpattern =/javascript/gi;// case-insensitive and global searchletnew_text = text.replaceAll(pattern,"JS");console.log(new_text);// JS JS 输出 JS JS 示例3:传递函数作为替换 您还可以将...
You can use the JavaScript replace() method in combination with the regular expression to find and replace all occurrences of a word or substring inside any string.Let's check out an example to understand how this method basically works:
To replace all occurrences of a string in a text with the new one, use the replace() or replaceAll() method. Both these JavaScript methods do not change the original string. Instead, return a new string with the substrings replaced by a new substring. Alternatively, you could also use ...
Let's assume we have the following string in which we wish to replace all occurrences of the word "foo" with "moo": const str = 'foobar, foo bar, Foo bar, Foobar'; Using String.prototype.rep
//Usethereplacemethod combinedwitha regular expressionwithglobalflagstoreplacealloccurrencesofa string.conststr="I love JavaScript, JavaScript is amazing!";console.log(str.replace(/JavaScript/g, "Node.js")); // "I love Node.js, Node.js is amazin...
}functionReplaceHighlightingCharacters(text, beginStr, endStr) {// Replace all occurrences of U+E000 (begin highlighting) with// beginStr. Replace all occurrences of U+E001 (end highlighting)// with endStr.varregexBegin =newRegExp("\uE000","g");varregexEnd =newRegExp("\uE001","g");...
1. String.prototype.replace:/gand/iFlags 1. 在String.prototype.replace方法中使用/g和/i标志位 One surprise to many JavaScript newbies is that String'sreplacemethod doesn'treplace all occurrences of the needle-- just the first occurrence. Of course seasoned JavaScript vets know that a regular exp...
Notice that only the first occurrence of "username" was replaced. This is the drawback to using a string as yoursearchForargument. But don't worry you can replace all occurrences of "username" if you decide to use regular expressions. ...