I want to know if its possible (and correct) to construct a named index array that is associated with other arrays.
E.g.,
var signOptionSet = [];
signOptionSet['basic'] = ['Sign Width', 'Sign Height', 'Sign Depth', 'Base Material', 'Finish'];
signOptionSet['advanced'] = ['Area', 'Perimeter', 'Lighting'];How would I access something like 'Sign Height' in signOptionSet['basic']?
I want to know if its possible...
Yes, although the way you're using it, you wouldn't want an array, you'd just want an object ({}) (see below).
...(and correct)...
Some would argue that using an array and then adding non-index properties to it is not correct. There's nothing technically wrong with it, provided you understand that some things (such as JSON.stringify) won't see those non-index properties.
How would I access something like 'Sign Height' in signOptionSet['basic']?
It's the second entry, so index 1, of the array you've assigned to signOptionSet['basic'], so:
var x = signOptionSet['basic'][1];
or
var x = signOptionSet.basic[1];
Using an object, and using property name literals as there's no need for strings here, would look like this:
var signOptionSet = {
basic: ['Sign Width', 'Sign Height', 'Sign Depth', 'Base Material', 'Finish'],
advanced: ['Area', 'Perimeter', 'Lighting']
};
You can use strings, though, if you prefer:
var signOptionSet = {
"basic": ['Sign Width', 'Sign Height', 'Sign Depth', 'Base Material', 'Finish'],
"advanced": ['Area', 'Perimeter', 'Lighting']
};
Both single and double quotes are valid in JavaScript (single quotes wouldn't be in JSON, but this isn't JSON, it's JavaScript):
var signOptionSet = {
'basic': ['Sign Width', 'Sign Height', 'Sign Depth', 'Base Material', 'Finish'],
'advanced': ['Area', 'Perimeter', 'Lighting']
};
