NodeJS: Variable referring to an Object variable

Question

I'm trying to have a variable (plain text) used to reference another variable (Object) and then call on it to get information from the referenced variable (Object). In concrete:

var bar1 = {
 p: 1,
 v: 0.1,
 sn: 1509475095
};
var bar2 = {
 p: 2,
 v: 0.2,
 sn: 1509475095
};
foo = 'bar1';
console.log(bar1.p); // Prints 1
console.log(foo); // Prints 'bar1'
console.log(foo.p); // Want this to somehow print 1

Any ideas? I think this is related with the fact that foo in my example is a String... but not sure how to manipulate the String to be able to get the reference.

Thanks in advance!

• ATOzTOA: You shouldn't do this.
• Martin Carre: OK ... but what if I need to?
• JB Nizet: @Ardzii then you should take a step back and reconsider your design. Shouldn't these variables be keys in a map or a POJO?
• Matt: Possible duplicate of How to use a string as a variable name in Javascript?
• Martin Carre: Hey JB! You're right and actually the suggestion given by Matt below fits perfectly my design! Thanks for your help! Plus I know now what a POJO is so thanks for that! ;)

Answer 1

Create an object to hold the variables so that you can reference them via a string.

var bars = { 
 bar1: {
 p: 1,
 v: 0.1,
 sn: 1509475095
 },
 bar2: {
 p: 2,
 v: 0.2,
 sn: 1509475095
 }, 
};
foo = 'bar1';
console.log(bars.bar1.p); // Prints 1
console.log(foo); // Prints 'bar1'
console.log(bars[foo].p); // Prints 1

• Martin Carre: Worked for me! Thanks Matt!