array empty check in php
if (empty($array)) {
// list is empty.
}array empty check in php
if (empty($array)) {
// list is empty.
}javascript check if array is empty
if (typeof array !== 'undefined' && array.length === 0) {
// the array is defined and has no elements
}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
}js check if array is empty
if (typeof image_array !== 'undefined' && image_array.length > 0) {
// the array is defined and has at least one element
}javascript check if array is empty
const isNotEmpty = arr => Array.isArray(arr) && arr.length > 0;
isNotEmpty([1, 2, 3]);
// Result: trueisempty for arrays
int arr[] = null;
if (arr == null) {
System.out.println("array is null");
}Copyright © 2021 Codeinu
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