Is there .count method in javascript like python? [duplicate]

Question

In Python, if we have a list,

array = [1,2,3,4,5]

If we say array.count(1), it will return the count of 1 in array.

Is there a method like this in javascript?

Does this answer your question? How to count the number of certain element in an array? — user13278024
– user13278024, Commented Apr 19, 2020 at 18:30
Does this answer your question? Counting the occurrences / frequency of array elements — robere2
– robere2, Commented Apr 19, 2020 at 18:30

Sajeeb Ahamed · Accepted Answer · 2020-04-19 18:30:15Z

1

I think there isn't. But you can make one by using prototype.

let array = [1,2,3,4,5,1];

Array.prototype.count = function(value) {
    let count = 0;

    this.forEach(item => {
	if (item === value) {
	    count++;
	}
    });

    return count;
}

console.log(array.count(1));
console.log(array.count(2));

answered Apr 19, 2020 at 18:30

Sajeeb Ahamed

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