An Underscore.js mix to find object keys by their values

findKeysByValue.js

_.mixin({
  findKeysByValue : function(object,value) {
    var retVal=[]
    for(var key in object){
        var obj=object[key]
        if(obj==value){
        	retVal.push(key)
        }
    }
    return retVal;
  }
});