Question

Referring to the model.set() function in backbone.js: Is there a way to supply the key value as a variable rather than having it hard-coded?

In my code below, setting the key as the variable prop literally sets the name of the key as “prop” whereas I need the name of the key to actually be the value stored in the variable prop.

var filters = new Filters();

for (var pair in facetsCollection) {
    for (var prop in facetsCollection[pair]) {
        filters.set({prop: (facetsCollection[pair])[prop]);
    }
}

Answer 1

you can do it easily like this:

var filters = new Filters();

// building of an options hash
var options = {}
for (var pair in facetsCollection) {
    for (var prop in facetsCollection[pair]) {
        options[prop] = (facetsCollection[pair])[prop];
    }
}

// setting the options all at once instead of 1 at a time in the for loops
filters.set(options);