javascript sort
var names = ["Peter", "Emma", "Jack", "Mia", "Eric"];
names.sort(); // ["Emma", "Eric", "Jack", "Mia", "Peter"]
var objs = [
{name: "Peter", age: 35},
{name: "Emma", age: 21},
{name: "Jack", age: 53}
];
objs.sort(function(a, b) {
return a.age - b.age;
}); // Sort by age (lowest first)how the sort function works javascript
const unsorted = ['d', 'd', 'h', 'r', 'v', 'z', 'f', 'c', 'g'];
const sorted = unsorted.sort();
console.log(sorted);
//["c", "d", "d", "f", "g", "h", "r", "v", "z"]
const unsortedNums = [45, 56, 3, 3, 4, 6, 7, 45, 1];
const sortedNums = unsortedNums.sort((a, b) => {
return a - b;
});
console.log(sortedNums);
//[1, 3, 3, 4, 6, 7, 45, 45, 56]arr.sort
//sort an array of strings
var fruitSalad = ['cherries', 'apples', 'bananas'];
fruit.sort(); // ['apples', 'bananas', 'cherries']
//sort an array of numbers
var scores = [1, 10, 2, 21];
scores.sort(); // [1, 10, 2, 21]
// Watch out that 10 comes before 2,
// because '10' comes before '2' in Unicode code point order.
//sorts an array of words
var randomThings = ['word', 'Word', '1 Word', '2 Words'];
randomThings.sort(); // ['1 Word', '2 Words', 'Word', 'word']
// In Unicode, numbers come before upper case letters,
// which come before lower case letters.how to sort an array in javascript
you can sort array in different ways:
first....by using the sort method
ex: let arr = ["a", "d", "b", "c", "f"]
let res = arr.sort()
NOTE: this method is not ideal
second...... by using the sort function
ex: let arr = [1, 10, 11, 30, 100, 50, 45]
let res = arr.sort((a, b)=> a - b ).....this sorts in ascending order
let res = arr.sort((a, b)=> b - a ) ...this sorts in descending order
NOTE: we can also user different algorithms to sort an array. example: bubble sort,
quick sort, merge sort etc.
answer by EZIOGOR CLEVERJavaScript Sorting Arrays
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.sort(); // Sorts the elements of fruitssorting in js
var arr = [23, 34343, 1, 5, 90, 9]
//using forEach
var sortedArr = [];
arr.forEach(x => {
if (sortedArr.length == 0)
sortedArr.push(x)
else {
if (sortedArr[0] > x) sortedArr.unshift(x)
else if (sortedArr[sortedArr.length - 1] < x) sortedArr.push(x)
else sortedArr.splice(sortedArr.filter(y => y < x).length, 0, x)
}
})
console.log(sortedArr);
// using sort method
console.log(arr.sort((a,b)=>{
return a-b;
}));Copyright © 2021 Codeinu
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