How to make a variable addressable by name as string in JavaScript?

Question

Is there a way to convert variable names to strings in javascript? To be more specific:

var a = 1, b = 2, c = 'hello'; var array = [a, b, c]; 

Now at some point as I go through the array, I need to get variable names (instead of their values) as strings - that would be 'a' or 'b' or 'c'. And I really need it to be a string so it is writeable. How can I do that?

Answer 1

Use a Javascript object literal:

var obj = {     a: 1,     b: 2,     c: 'hello' }; 

You can then traverse it like this:

for (var key in obj){     console.log(key, obj[key]); } 

And access properties on the object like this:

console.log(obj.a, obj.c); 

Answer 2

What you could do is something like:

var hash = {}; hash.a = 1; hash.b = 2; hash.c = 'hello'; for(key in hash) {     // key would be 'a' and hash[key] would be 1, and so on. }