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There are six string methods: search(), replace(), replaceAll(), match(), matchAll(), and split().
The search() method uses an expression to search for a match, and returns the position of the match.
javascript
1var msg = "Hello John";
2
3var n = msg.search(/John/i); // 6The replace() and replaceAll() methods are used to return a modified string where the pattern is replaced.
javascript
1var msg = "ball bat";
2
3var n1 = msg.replace(/b/i, "c"); // call bat
4
5var n2 = msg.replaceAll(/b/i, "c"); // call catThe match() and matchAll() methods are used to return the matches when matching a string against a regular expression.
javascript
1var msg = "Hello John";
2
3var n1 = msg.match(/[A-Z]/g); // ["H", "J"]
4
5var n2 = msg.matchAll(/[A-Z]/g); // this returns an iteratorThe split() method is used to split a string into an array of substrings, and returns the new array.
javascript
1var msg = "Hello John";
2
3var n = msg.split(/\s/); // ["Hello", "John"]Advertisement
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JavaScript Coding Exercise 71
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