how to get the count of particular character in a string in javascript code example

Example 1: count occurrences of character in string javascript

var temp = "This is a string.";
var count = (temp.match(/is/g) || []).length;
console.log(count);

Output: 2

Explaination : The g in the regular expression (short for global) says to search the whole string rather than just find the first occurrence. This matches 'is' twice.

Example 2: js character certain count

var str = "Hello Lewes";
var ch = 'e';
 
var count = str.split("e").length - 1;
console.log(count);
 
/*
    Output: 3
*/

Example 3: javascript count character in string

var str = "Hello World!";
var n = str.length;