How to access a numeric property?

javascript

Solution

This should work:

myObject["0"]

(`myObject["propertyName"]` is an alternative syntax for `myObject.propertyName`.)

You're getting the error because, in JavaScript, identifiers can't begin with a numeral. From the Variables page at the Mozilla Developer Centre:

A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($); subsequent characters can also be digits (0-9). Because JavaScript is case sensitive, letters include the characters "A" through "Z" (uppercase) and the characters "a" through "z" (lowercase).

Problem

I have an object like: ``` var myObject = { '0' : 'blue' }; ``` Now, when I try to access the value of the key '0' like: ``` myObject.0 ``` ...I am getting an error. (Maybe this is not the proper way?) How can I access the value of a key that is a number (like the above)?

Original source