javascript check if array is empty
if (typeof array !== 'undefined' && array.length === 0) {
// the array is defined and has no elements
}javascript check if array is empty
if (typeof array !== 'undefined' && array.length === 0) {
// the array is defined and has no elements
}javascript check if array is not empty
if (array === undefined || array.length == 0) {
// array empty or does not exist
}javascript not empty array not string
if (Array.isArray(array) && array.length) {
// array exists and is not empty
}check array empty or not in javascript
// To safely test if the array referenced by variable “array” isn’t empty:
if (array && array.length) {
// not empty
} else {
// empty
}
// Note that if “array” is assigned to some other object that isn’t an array, the code will still execute the “else” part.
// A possible improvement to check that the object is specifically an empty array might be this:
if (array && array.constructor === Array && array.length === 0) {
// strictly an empty array
} else {
// either null, or not an array or not an empty array
}javascript empty array
var colors = ["red","blue","green"];
colors = []; //empty the arrayjavascript is array empty
var colors=[];
if(!colors.length){
// I am empty
}else{
// I am not empty
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
