count characters in string js 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);
Example 3: how get count of letters in javascript
$("#about_me_textarea").val().length
Example 4: how to count specific letters in string js
console.log(("str1,str2,str3,str4".match(/,/g) || []).length);
console.log(("str1,str2,str3,str4".match(new RegExp("str", "g")) || []).length);
Example 5: count value a to b character javascript
function count (string) {
var count = {};
string.split('').forEach(function(s) {
count[s] ? count[s]++ : count[s] = 1;
});
return count;
}
Example 6: javascript count character in string
var str = "Hello World!";
var n = str.length;