I am dealing with an object of objects and I need to display these objects and their values in a specific order (not alphabetically).
How can I accomplish this using angular? Below is a sample of my object:
var filters = {
language : { someProperty : "prop1", someOther : "prop2" },
country : { resumeProp : "prop", resumeProp2 : false },
destination { resumeProp : "prop", resumeProp2 : false },
};
I would like to organize the objects as destination, country, and then language.
In the world of JavaScript, objects are inherently unordered (as stated in the ECMAScript Language Specification, section 4.3.3). It's not guaranteed that iterating over a set of object properties twice will yield the same order both times.
To ensure order, one should opt for an array and leverage the Array.prototype.sort method:
var filters = [
{ name: "language", order: 2, someProperty : "prop1", someOther : "prop2" },
{ name: "country", order: 1, resumeProp : "prop", resumeProp2 : false },
{ name: "destination", order: 0, resumeProp : "prop", resumeProp2 : false }
];
function compare(a,b) {
if (a.order < b.order)
return -1;
else if (a.order > b.order)
return 1;
else
return 0;
}
filters.sort(compare); // destination, country, language
If you're working with ES6, consider using the Map object; it operates like an Object but guarantees key order as well.
If altering the original object is not feasible,
generate another array featuring the object's indexes, such as
var filtersKey = ['destination', 'country', 'language'];apply the ng-repeat to this new array.
fetch values from the original object via filters[value], where value corresponds to each string within filtersKey accessed through the ng-repeat.
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