arr = [1,2,3];
arr.forEach(function(i){
// last iteration
});
How to catch when the loop ending? I can do if(i == 3)
but I might don't know what is the number of my array.
This question is related to
javascript
jquery
const arr= [1, 2, 3]
arr.forEach(function(element){
if(arr[arr.length-1] === element){
console.log("Last Element")
}
})
The 2018 ES6+ ANSWER IS:
const arr = [1, 2, 3];
arr.forEach((val, key, arr) => {
if (Object.is(arr.length - 1, key)) {
// execute last item logic
console.log(`Last callback call at index ${key} with value ${val}` );
}
});
Source: Stackoverflow.com