Exists a more elegant way to create an object from an array than this one?
var createObject = function(){
var myArray= generateArray();
var myObject = {
question : myArray[0],
answerA : myArray[1],
answerB : myArray[2],
answerC : myArray[3],
answerD : myArray[4]
};
return myObject;
}
What's your background? Python?
var values = generateArray();
var obj = {};
["question", "answerA", "answerB", "answerC", "answerD"].forEach(function(item, idx) {
obj[item] = values[idx];
});
return obj;
You could define an attribute map:
var createObject = function(){
// The map should have the attribute names set in order defined in `myArray`
var map = ["question", "answerA", "answerB", "answerC", "answerD"]
var myArray = generateArray();
var myObject = {};
for(var i in map)
myObject[map[i]] = myArray[i];
return myObject;
}
Try this to go beyond 'A', 'B', 'C', 'D':
function arrayToObject ( array ) {
return array.reduce(
function ( object, cell, index ) {
if (index > 0) object['answer' + String.fromCharCode(64 + index)] = cell;
else object['question'] = cell;
return object;
}, {}
);
}
If you would like to have a function that takes an array as an argument, and returns an object, this is how I would do it:
var toObject = function(arr) {
var newObj = {};
for(var i = 0; i < arr.length; i++) {
newObj[i] = arr[i];
}
return newObj;
};
However, keep in mind that Javascript arrays are simply objects with more methods available to them such as push(), pop(), and the length property.
Hope this helps!
questionand all remaining elements become answers A, B, C, etc., then you could use a loop - but if there are only ever four answers the loop code isn't going to be much shorter, so...