I have an array like this in JS:
var a = ["1", "2", "1_10", "1_22", "2_12", "3", "14", "1_15", "3_31", "14_25", "2_18"];
and I need to sort it, in order to look like this:
["1", "1_10", "1_15", "1_22", "2", "2_12", "2_18", "3", "3_31", "14", "14_25"];
I tried using a function like the one in this fiddle http://jsfiddle.net/r7vQP/ but I am getting a wrong answer (["1", "14", "14_25", "1_10", "1_15", "1_22", "2", "2_12", "2_18", "3", "3_31"]).
Try this:
var b = a;
for (var i = 0; i < b.length; i++) {
b[i] = b[i].replace('_', '.');
}
b.sort(function (a, b) { return a - b });
for (var y = 0; y < b.length; y++) {
a[y] = b[y].replace('.', '_');
}
1_10 did not get lost after the sorting.function numericSort(a, b) {
return a - b;
}
a.map(function (e) {
return parseFloat(e.replace("_", "."));
})
.sort(numericSort)
.map(function (e) {
return e.toString().replace(".", "_");
})
var a = ["1", "2", "1_10", "1_22", "2_12", "3", "14", "1_15", "3_31", "14_25", "2_18"]; function sortByFloat (a,b)
{
a=parseFloat (a.replace ("_",".")); b=parseFloat (b.replace ("_",".")); if (a<b) return -1; if (a>b) return 1; if (a==b) return 0; } a.sort (sortByFloat);
return a-b would be faster instead of the three if conditions
function to_dot(s) { return s.replace('_','.') }
function from_dot(n) { return n.replace('.','_') }
a.map(to_dot).sort(function(a,b){return a-b}).map(from_dot)
["1", "1_10", "1_15", "1_22", "2", "2_12", "2_18", "3", "3_31", "14", "14_25"]