JavaScript verifique se a matriz está vazia
if (array && !array.length) {
// array is defined but has no element
}
Scriper
if (array && !array.length) {
// array is defined but has no element
}A.splice(0,A.length)arr = []; // set array=[]
//function
const empty = arr => arr.length = 0;
//example
var arr= [1,2,3,4,5];
empty(arr) // arr=[]const myArray1 = []
// or...
const myArray2 = new Array()var colors=[];
if(!colors.length){
// I am empty
}else{
// I am not empty
}Array.from({length: 500})
// change the length to whatever value you want