javascript: object property is array, but append isn't working

var objs = {
   'prop': []
}
objs['prop'].append('q');

Error: TypeError: objs.prop.append is not a function

Why this code is not working ?
Why console.log(typeof(objs['prop'])); is object not array ?

var objs = {
   'prop': []
}
objs['prop'].append('q');

Error: TypeError: objs.prop.append is not a function

Why this code is not working ?
Why console.log(typeof(objs['prop'])); is object not array ?

Share Improve this question asked Sep 27, 2011 at 17:21 cetver 11.8k6 gold badges40 silver badges58 bronze badges

2 typeof is a red herring. (typeof new Array()) = "object" in Javascript. – Elliot Nelson Commented Sep 27, 2011 at 17:26

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2 Answers 2

Sorted by: Reset to default 13

Array.push:

var objs = {
   'prop': []
}
objs['prop'].append('q');

should be:

var objs = {
   'prop': []
}
objs['prop'].push('q');

Because there are no associative arrays in JavaScript, an associative array is actually an Object. Nothing more nothing less.