JavaScript String search() Method - JavaScript Methods for Searching Strings
JavaScript String Search
- JavaScript Search Methods :
- String indexOf()
- String lastIndexOf()
- String search()
- String match()
- String matchAll()
- String includes()
- String startsWith()
- String endsWith()
- JavaScript Search Methods and definition :
- The indexOf() method returns the index of (position of) the first occurrence of a string in a string
- The lastIndexOf() method returns the index of the last occurrence of a specified text in a string
- The search() method searches a string for a string (or a regular expression) and returns the position of the match
- The match() method returns an array containing the results of matching a string against a string (or a regular expression).
- The matchAll() method returns an iterator containing the results of matching a string against a string (or a regular expression).
- The includes() method returns true if a string contains a specified value.Otherwise it returns false.
- The startsWith() method returns true if a string begins with a specified value.Otherwise it returns false
- The endsWith() method returns true if a string ends with a specified value.Otherwise it returns false
Sample Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<p id="demo1"></p>
<p id="demo2"></p>
<p id="demo3"></p>
<p id="demo4"></p>
<p id="demo5"></p>
<p id="demo6"></p>
<p id="demo7"></p>
<p id="demo8"></p>
<script>
let text = "welcome to kaashiv infotech!";
document.getElementById("demo1").innerHTML = text.indexOf("kaashiv");
document.getElementById("demo2").innerHTML = text.lastIndexOf("kaashiv");
document.getElementById("demo3").innerHTML = text.search("kaashiv");
document.getElementById("demo4").innerHTML = text.match("kaashiv");
document.getElementById("demo5").innerHTML = text.matchAll("kaashiv");
document.getElementById("demo6").innerHTML = text.includes("kaashiv");
document.getElementById("demo7").innerHTML= text.startsWith("kaashiv");
document.getElementById("demo8").innerHTML = text.endsWith("kaashiv");
</script>
</body>
</html>
Output
11
11
11
kaashiv
[object RegExp String Iterator]
true
false
false