Classify Lodash comes first number after letter, for example:
const myArray = ['2', '5', '10', 'A', '1']; //sim, número String
const result = _.orderBy(myArray, item => parseInt(item), 'asc');
//['1', '2', '5', '10', 'A'];
I would like an output like this ['A', '1', '2', '5', '10'] . I tried another way, but it did not work out as a result I wanted:
const result = _.orderBy(myArray, (a,b) => b - a, 'asc');
As far as I know, lodash does sort for keys, but not for content.
To separate numbers and letters I suggest starting from two arrays, organizing each one and then putting them together.
It could be something like this:
function sortAlphaNum(arr) {
const letters = [];
const numbers = [];
for (let i = 0, l = arr.length; i < l; i++) {
if (arr[i].match(/\d+/)) numbers.push(arr[i]);
else letters.push(arr[i]);
}
return letters.sort().concat(numbers.sort((a, b) => a - b));
}
const myArray = ['2', '5', 'C', '10', 'A', '1'];
console.log(sortAlphaNum(myArray));I do not know if it is possible with common methods of ordering, because of the natural ordering of the elements.
If you do a test, such as:
var lista = ['1', '4', 'C', '6', '2', 'A'];
function OrdenarArray(a, b) {
return a > b;
}
will have a result: ['1', '2', '4', '6', 'A', ...]
I ordered with a certain effort:
var lista = ['10', '4', 'C', '6', '2', 'A'];
function OrdenarArray(a, b) {
return a > b;
}
var lLetras = new Array();
var lNumeros = new Array();
$.each(lista, function(indice, obj) {
if (!isNaN(parseInt(obj, 0)))
lNumeros.push(Number(obj));
else
lLetras.push(obj);
});
lLetras = lLetras.sort(OrdenarArray);
lNumeros = lNumeros.sort(OrdenarArray);
lista = lLetras;
$.each(lNumeros, function(indice, obj) {
lista.push(obj.toString());
});
Final result: ['A', 'C', '2', '4', ...]
Of course there must be better ways to order. Oh, and I used jquery. = x