javascript count number of times character appears in string
You could remove any other character in the string and check the length: str.replace(/[^aA]/g, "").length Here it is counted how many as are in str. The RegExp is described below: [ // Start Character Group ^ // Not operator in character group a // The character "a" ] // End character group //The g (global) in the regular expression tells the program to search //the whole string rather than just finding the first occurrence.
