array is empty in javascript code example
Example 1: javascript check if array is empty
if (typeof array !== 'undefined' && array.length === 0) {
// the array is defined and has no elements
}
Example 2: javascript check if array is not empty
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
Example 3: javascript not empty array not string
if (Array.isArray(array) && array.length) {
// array exists and is not empty
}
Example 4: javascript is array empty
var colors=[];
if(!colors.length){
// I am empty
}else{
// I am not empty
}
Example 5: javascript cehck if array is empty
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
Example 6: how to make array empty
A.length = 0