Delete element of array without null as result

Question

How do I delete an item from an array without null as the result?

var a = [1,2,3];
delete a[1];
a;
result: [1,null,3];
desired result: [1,3];

See here developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — elclanrs
– elclanrs, Commented Jul 11, 2014 at 21:05

Mike Christensen · Accepted Answer · 2014-07-11 21:20:05Z

2

The delete operator simply removes a property from an object, so that property becomes null. It won't resize your array automatically.

To do this, use the Splice method:

var a = [1,2,3];
a = a.splice(1, 1); // Remove one element from array, starting at index 1

answered Jul 11, 2014 at 21:10

Mike Christensen

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