get variable name into string in javascript [duplicate]

Answer 1

Yes, you can do it:

function getVariableName(v) {
    for (var key in window) {
        if (window[key] === v)
            return key;
    }
}
var abc = '123';
var def = '456'
alert ("value of " + getVariableName(abc) +" is "+ abc +" and value of " + getVariableName(def) + " is " + def);