Answers for "count number of occurrences of all character in string javascript"

8

javascript count occurrences of letter in string

function count(str, find) {
    return (str.split(find)).length - 1;
}

count("Good", "o"); // 2
Posted by: Guest on May-31-2021
5

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.
Posted by: Guest on June-14-2021

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