Use data from one variable in the title of another - javascript

Question

Is there any way to use the data from one variable in the declaration of another variable? It is the same concept of coercing strings, just in the variable declaration. For example, if I wanted to create a variable called user1, is there any way to do it somehow like this:

var i = 1; // Creates variable with value of 1
var user + i = "John"; // Creates variable with name of user1 (because i has a value of 1)

Would an array work better? – user7491506 Mar 15 '17 at 16:45 — user7491506, Mar 15 '17 at 16:45

score 1 · Accepted Answer · answered Mar 15 '17 at 16:50

1

You can do something like

var i = 1;
var username = 'John';
var users = {};
users[username + i] = username

And after this you can use

users.John1

Is this acceptable ?

answered Mar 15 '17 at 16:50

Johan Willfred

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I never knew that array indices can be string in JavaScript. – Mohammed Shareef C Mar 15 '17 at 16:59

score 0 · Answer 2 · answered Mar 15 '17 at 16:56

 var i = 1; // Creates variable with value of 1

Instead of var user + i = "John"; // Creates variable with name of user1 (because i has a value of 1) you should use:

 window['user'+i] ="John";

 alert(user1);

https://jsfiddle.net/6x0uLbe8/

Use data from one variable in the title of another - javascript

2 Answers2