Answers for "node js empty array check"

javascript check if array is empty

if (typeof array !== 'undefined' && array.length === 0) {
    // the array is defined and has no elements
}

javascript empty array

arr = [];   // set array=[]

//function
const empty = arr => arr.length = 0;
//example
var arr= [1,2,3,4,5];
empty(arr) // arr=[]