Hi! I solved the Condense arrays with reduce challenge but I don’t understand what does the “0” (zero) at the end of the function mean? Is it only to set the starting number? That’s the example in the question: var singleVal = array.reduce(function(previousVal, currentVal) { return previousVal - …

Condense arrays with reduce- why "0"?

kevcomedia October 27, 2016, 11:44am 2

It’s the initial value. If it’s not provided, the first element in the array will be the initial value.

4 Likes

Topic		Replies	Views
Condense arrays with reduce :-) JavaScript	11	936	February 2, 2021
Use of the number "0" in Condense arrays with reduce JavaScript	2	427	February 2, 2021
Condense arrays with reduce	12	2635	January 16, 2021
Quick question about condensing arrays with reduce javascript , beginnigjavascript , reduce	4	637	January 17, 2021
Array Reduce ( ) Method JavaScript	13	1422	January 25, 2021