Say I have this code...
var personA = {
name: "john"
}
var personB = {
name: "john"
}
function doSomething(o) {
alert("Var is: " + o.toString()); // I need to convert 'o' to the object name
}
doSomething(personA);
doSomething(personB);
I want the alert output to be...
Var is: personA
Var is: personB
But I can't figure out how to get the name as string of the object?
This is impossible. There is no connection back to the variable.
When you doSomething(personA); you get the value of the variable personA and pass that value to the function.
function doSomething(o) {
The value is copied into o. There is no path back to personA from there.
Basically no you can't
A hacky way of doing it would be do have
var personA = {
name: "John",
variable: "personA"
}
and then just use o.variable
var people = {
personA: {name: "john"},
personB: {name: "billy"}
};
for(var variable in people)
{
alert(variable);
}
Code comes from here
You could do something along the lines of
var global = {};
Object.observe(global, function(obj) {
console.log(obj[0].name);
});
global.personA = { name: "John" };
with EC7 observe
personA/personBin the output?? The names of the variables? Something tells me this is an X/Y problem -- you've asked about Y because you think you need Y to solve problem X, but it's likely that there's a better way to solve problem X than the above.