The
sortmethod sorts the elements of an array according to the callback function.For example:
function ascendingOrder(arr) {
return arr.sort(function(a, b) {
return a - b;
});
}
ascendingOrder([1, 5, 2, 3, 4]); // This would return the value [1, 2, 3, 4, 5].
function reverseAlpha(arr) {
return arr.sort(function(a, b) {
return a === b ? 0 : a < b ? 1 : -1;
});
}
reverseAlpha(['l', 'h', 'z', 'b', 's']);
// This would return the value ['z', 's', 'l', 'h', 'b'].
- Let's use the
sortmethod in thealphabeticalOrderfunction to sort the elements ofarrin alphabetical order.
function alphabeticalOrder(arr) {
// Only change code below this line
// Only change code above this line
}
console.log(alphabeticalOrder(["a", "d", "c", "a", "z", "g"]));
- Answer:
function alphabeticalOrder(arr) {
let sortArr = arr.sort();
return sortArr;
}
console.log(alphabeticalOrder(["a", "d", "c", "a", "z", "g"]));
// alphabeticalOrder(["a", "d", "c", "a", "z", "g"]) would return [ 'a', 'a', 'c', 'd', 'g', 'z' ]
- OR:
function alphabeticalOrder(arr) {
return arr.sort((a, b) => {
return a === b ? 0 : a > b ? 1 : -1; // <-- a less than b
});
}
console.log(alphabeticalOrder(["a", "d", "c", "a", "z", "g"]));
Larson, Quincy, editor. “Sort an Array Alphabetically using the sort Method.” Https://Www.freecodecamp.org/, Class Central, 2014, twitter.com/ossia.
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