javascript count occurrences of letter in string
function count(str, find) {
return (str.split(find)).length - 1;
}
count("Good", "o"); // 2
javascript count occurrences of letter in string
function count(str, find) {
return (str.split(find)).length - 1;
}
count("Good", "o"); // 2
how to count occurences in an array with javascript
// This function counts instances of elements in an array
// the return object has the array elements as keys
// and number of occurrences as it's value
const arrToInstanceCountObj = arr => arr.reduce((obj, e) => {
obj[e] = (obj[e] || 0) + 1;
return obj;
}, {});
arrToInstanceCountObj(['h', 'e', 'l', 'l', 'o', 'w', 'o', 'r', 'l', 'd'])
/*
{
h: 1,
e: 1,
l: 3,
o: 2,
w: 1,
r: 1,
d: 1,
}
*/
Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us