I have a problem when I sort a number of array like this:
let number = '72 65 73 78 75 74 90 81 87 65 55 69 72 78 79 91 100 40 67 77 86';
let numberArray = number.split(' ');
let sortedNumber = numberArray.sort().map(Number);
console.log(sortedNumber);
It will return
[100, 40, 55, 65, 65, 67, 69, 72, 72, 73, 74, 75, 77, 78, 78, 79, 81, 86, 87, 90, 91]
Why 100 show in the first index? And how to make it be the last?
Try this...
let number = '72 65 73 78 75 74 90 81 87 65 55 69 72 78 79 91 100 40 67 77 86';
let numberArray = number.split(' ');
numberArray.sort(function(a, b) {
return a - b;
});
console.log(numberArray)It is trying to sort alphabetically... this will sort as a numeric value
You can change the algorithm as:
1) convert string to string array
number.split(" ")
2) map over the string array to make it array of numbers
numberArray.map(Number)
3) pass the custom comparator function in the sort method
.sort((a, b) => a - b)
Note: You can make it one-liner as
let sortedNumber = number.split(" ").map(Number).sort((a, b) => a - b);
let number = "72 65 73 78 75 74 90 81 87 65 55 69 72 78 79 91 100 40 67 77 86";
let numberArray = number.split(" ");
let sortedNumber = numberArray.map(Number).sort((a, b) => a - b);
console.log(sortedNumber);/* This is not a part of answer. It is just to give the output full height. So IGNORE IT */
.as-console-wrapper { max-height: 100% !important; top: 0; }