js sort array

1// Sort an array of numbers 
2let numbers = [5, 13, 1, 44, 32, 15, 500]
3
4// Lowest to highest
5let lowestToHighest = numbers.sort((a, b) => a - b);
6//Output: [1,5,13,15,32,44,500]
7
8//Highest to lowest
9let highestToLowest = numbers.sort((a, b) => b-a);
10//Output: [500,44,32,15,13,5,1]
11

1numArray.sort((a, b) => a - b); // For ascending sort
2numArray.sort((a, b) => b - a); // For descending sort
3

1var items = [
2  { name: 'Edward', value: 21 },
3  { name: 'Sharpe', value: 37 },
4  { name: 'And', value: 45 },
5  { name: 'The', value: -12 },
6  { name: 'Magnetic', value: 13 },
7  { name: 'Zeros', value: 37 }
8];
9
10// sort by value
11items.sort(function (a, b) {
12  return a.value - b.value;
13});
14
15// sort by name
16items.sort(function(a, b) {
17  var nameA = a.name.toUpperCase(); // ignore upper and lowercase
18  var nameB = b.name.toUpperCase(); // ignore upper and lowercase
19  if (nameA < nameB) {
20    return -1;
21  }
22  if (nameA > nameB) {
23    return 1;
24  }
25
26  // names must be equal
27  return 0;
28});

1
2        
3            
4        
5     let numbers = [0, 1, 2, 3, 10, 20, 30];
6numbers.sort((a, b) => a - b);
7
8console.log(numbers);

1var points = [40, 100, 1, 5, 25, 10];
2points.sort((a,b) => a-b)

1// Functionless
2sort()
3
4// Arrow function
5sort((firstEl, secondEl) => { ... } )
6
7// Compare function
8sort(compareFn)
9
10// Inline compare function
11sort(function compareFn(firstEl, secondEl) { ... })
12