js check if array is empty

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showing results for - "js check if array is empty"
Matías
24 Jun 2020
1if (typeof array !== 'undefined' && array.length === 0) {
2    // the array is defined and has no elements
3}
4
Ashley
10 Feb 2016
1if(typeof array != 'undefined' && array.length > 0){
2	// array has elements
3}
Massimo
23 Mar 2020
1if (!Array.isArray(array) || !array.length) {
2  // array does not exist, is not an array, or is empty
3  // ⇒ do not attempt to process array
4}
5
Jessica
15 Sep 2020
1if (array === undefined || array.length == 0) {
2    // array empty or does not exist
3}
4
Elizabeth
13 Aug 2020
1if (array && !array.length) {
2    // array is defined but has no element
3}
Claudia
14 Nov 2020
1if (typeof image_array !== 'undefined' && image_array.length > 0) {
2    // the array is defined and has at least one element
3}
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