I am trying to populate an array with the text value of a json obejct based off values from another array
my code is:
var DemoOptions = {
"One" : 1,
"Two" : 2,
"Three" : 3,
"Four" : 4,
"Five" : 5
};
var OldArray = [1,3,5];
var NewArray = [];
$.each(OldArray,function(x, item){
NewArray.push(DemoOptions.item);
});
NewArray should now be:
NewArray ["One", "Three", "Five"]
If DemoOptions was flipped like:
var DemoOptions = {
1: "One",
2: "Two",
3: "Three",
4: "Four",
5: "Five"
};
you could do this very easily, because you just need to iterate through OldArray one and push the respective value (mapped by DemoOptions) into NewArray. Since there is probably a good reason you have it the other way, you should create this flipped copy dynamically and then fill your new array:
var DemoOptions = {
"One" : 1,
"Two" : 2,
"Three" : 3,
"Four" : 4,
"Five" : 5
};
var OldArray = [1,3,5];
var flipped = {};
for(var key in DemoOptions)
flipped[DemoOptions[key]] = key;
var NewArray = [];
for(var i = 0; i < OldArray.length; i++)
NewArray.push(flipped[OldArray[i]]);
Too bad DemoOptions isn't indexed by the numeric value instead of by the string value. Anyway, how about this:
for (var index in OldArray) {
var value = OldArray[index];
for (var demoString in DemoOptions) {
if (DemoOptions.hasOwnProperty(demoString)) {
var demoValue = DemoOptions[demoString];
if (value == demoValue) {
NewArray.push(demoString);
break;
}
}
}
}
