Currently, I got an array like that:
var uniqueCount = Array();
After a few steps, my array looks like that:
uniqueCount = [a,b,c,d,d,e,a,b,c,f,g,h,h,h,e,a];
How can I count how many a,b,c are there in the array? I want to have a result like:
a = 3
b = 1
c = 2
d = 2
etc.
function count() {
array_elements = ["a", "b", "c", "d", "e", "a", "b", "c", "f", "g", "h", "h", "h", "e", "a"];
array_elements.sort();
var current = null;
var cnt = 0;
for (var i = 0; i < array_elements.length; i++) {
if (array_elements[i] != current) {
if (cnt > 0) {
document.write(current + ' comes --> ' + cnt + ' times<br>');
}
current = array_elements[i];
cnt = 1;
} else {
cnt++;
}
}
if (cnt > 0) {
document.write(current + ' comes --> ' + cnt + ' times');
}
}
count();
You can use higher-order functions too to do the operation. See this answer