check for empty array js 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 check if array is empty

if (array && !array.length) {
    // array is defined but has no element
}

Example 4: javascript how to check if array is empty

if(array.length > 0)

Example 5: check row empty array javascript

if(array && array.length){   
   // not empty 
} else {
   // empty
}

Example 6: check if array is empty javascript

array.length = []