Wash array useless value, such as 0, undefined, null, false, etc.
var myArray = [1, 2, 0, undefined, null, false]; const arr = myArray.filter(Boolean); console.log(arr); // [1, 2]
var myArray = [1, 2, 0, undefined, null, false]; const arr = myArray.filter(Boolean); console.log(arr); // [1, 2]