May 19, 2009 · function countChar (char: string, search: string): number { let num: number = 0; let str: string = search; let pos: number = str.indexOf(char); while(pos > -1) { str = str.slice(pos + …

Oct 24, 2010 · const countOccurence = (string, char) => { const chars = string.match(new RegExp(char, 'g')).length return chars; }

Apr 3, 2012 · I have an array in jQuery, and I need to count the number of "true" strings in that array, and then make the "numOfTrue" variable equal the number of true strings. So in the …

May 27, 2024 · Using Array.reduce(), convert the string to an array of characters and accumulate the count of occurrences of the specific character by incrementing the accumulator for each …

Nov 23, 2024 · Spread the string into an array ( […s]) and iterate over it using forEach. Update character counts in the object. The reduce () method stores the result into an object. It’s a …

Write a function to find the occurrence of a character in a string. Return the number of times ch appears str . For example, if given str = "programming" and ch = 'm' , the number of times 'm' …

Dec 5, 2021 · This post will discuss how to count the total number of occurrences of a character in a string with JavaScript. 1. Using Regex. Regular expressions are often used in JavaScript for …

Nov 27, 2024 · Here are the various methods to count string occurrence in a string using JavaScript. 1. Using match () Method (Common Approach) The match () method is a simple …

Feb 2, 2024 · Count Occurrences in the String Using match() in JavaScript. The match() method is an in-built JavaScript method. This method retrieves the result of matching a …

Nov 6, 2013 · Do you mean you want to count how many times any item from your array appears in the string? Forget about using regex and just use a simple indexOf to check for number of …