How to get last key in array in javascript?
arrays, javascript
Solution
var foo = myarray[myarray.length - 1];
The preferred term is element, rather than key.
EDIT: Or do you mean the last index? That is `myarray.length - 1`. Keep in mind, JavaScript arrays can only be indexed numerically (though arrays are also objects, which causes some confusion).
Problem
This is similar to this question,only PHP->javascript How to get numeric key of new pushed item in PHP?