Can someone explain how this JavaScript code works?

Question

I dont get it... why he used obj in this function, can someone explain what it doing.

 const yourArray = [37, 32,97,35,76,62] function equalizeArray(arr) { let obj = {}, max = 1 arr.forEach(el => { if (obj.hasOwnProperty(el)) { obj[el] = obj[el] + 1; if (obj[el] > max) { max = obj[el]; } } else{ obj[el] = 1 } }) return arr.length - max } console.log(equalizeArray(yourArray));

Answer 1

From what I gather, the function's purpose is to count the maximum number of same values in an array, and then subtract that maximum number ( max ) from the array's length and return that.

The function uses an object obj to store array values as keys, and their repetition count as values to those keys.

The variable max keeps track of the maximum repetition, if any key has a value bigger than max it gets reassigned.

And then function returns array.length - max .