Khalid Kal

Khalid Kal

1585017420

JavaScript Array Sort() Method Tutorial with Example

The JavaScript sort() method – we will discuss about sort() method. How it work with string, numbers and character. Javascript sort method is used to sort the elements of an array and return new array.

Array sort method is used to sort JavaScript Array if manual code will be written to write the array, it will take a long time.

The javaScript Sort () function defines the value as strings. It works well for the strings. We will sort the array of element or items.

JavaScript Sort()

Contents

  • JavaScript sort() Syntax
  • Examples

JavaScript sort() Syntax

arr.sort([compareFunction])

Example of Numeric Sort

var arr = [5, 3, 10, 1, 6, 12]
 document.write("Array before sorting = " + arr); 
 document.write("<br>"); 
 document.write("Array After sorting = " + arr.sort()); 
Output
//// return 
Array before sorting = 5,3,10,1,6,12
Array After sorting = 1,10,12,3,5,6 

Example 2 of Numeric sort

Sort an array ascending order using function.

var arr = [5, 3, 10, 1, 6, 12]
 document.write("Array before sorting = " + arr); 
 document.write("<br>");
 arr.sort(function(a, b) {
     return a - b;
 });
 document.write("Array After sorting = " + arr); 
Output
return //// Sort an array ascending order
Array before sorting = 5,3,10,1,6,12
Array After sorting = 1,3,5,6,10,12 

Example 3 of Numeric sort

Sort an array descending order using function.

var arr = [5, 3, 10, 1, 6, 12]
 document.write("Array before sorting = " + arr); 
 document.write("<br>");
 arr.sort(function(a, b) {
     return b - a;
 });
 document.write("Array After sorting = " + arr); 
Output
return //// Sort an array descending order: 
 
Array before sorting = 5,3,10,1,6,12
Array After sorting = 12,10,6,5,3,1 

When the sort() function compares two values, so it will always return true or false. We pass the array in javascript sort function than it will proccess and check, return sorted array.

Example Of String Array Sort

 var arr = Array("php", "python", "javascript", "c", "c#", "rust");         
 document.write("Array before sorting = " + arr); 
 document.write("<br>"); 
 document.write("Array After sorting = " + arr.sort()); 
Output
return /// 

Array before sorting = php,python,javascript,c,c#,rust
Array After sorting = c,c#,javascript,php,python,rust 

Example 5

Extract a minimum value from an array.

var arr = [5, 3, 10, 1, 6, 12]   
 document.write("Array before sorting = " + arr); 
 document.write("<br>"); 
 var result=arr.sort();
 document.write("Minimum value of an array = " + arr[0]); 
Output
//return 

Array before sorting = 5,3,10,1,6,12
Minimum value of an array = 1 

#javascript #array #webdev

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JavaScript Array Sort() Method Tutorial with Example
Lowa Alice

Lowa Alice

1624388400

JavaScript Arrays Tutorial. DO NOT MISS!!!

Learn JavaScript Arrays

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Thanks for visiting and watching! Please don’t forget to leave a like, comment and share!

#arrays #javascript #javascript arrays #javascript arrays tutorial

Terry  Tremblay

Terry Tremblay

1602154740

Fill and Filter in Array in JavaScript

By the word Array methods, I mean the inbuilt array functions, which might be helpful for us in so many ways. So why not just explore and make use of them, to boost our productivity.

Let’s see them together one by one with some amazing examples.

Array.fill():

The _fill()_ method changes all elements in an array to a static value, from a start index (default _0_) to an end index (default _array.length_). It returns the modified array.

In simple words, it’s gonna fill the elements of the array with whatever sets of params, you pass in it. Mostly we pass three params, each param stands with some meaning. The first param value: what value you want to fill, second value: start range of index(inclusive), and third value: end range of index(exclusive). Imagine you are going to apply this method on some date, so that how its gonna look like eg: array.fill(‘Some date’, start date, end date).

NOTE: Start range is inclusive and end range is exclusive.

Let’s understand this in the below example-

//declare array
var testArray = [2,4,6,8,10,12,14];

console.log(testArray.fill("A"));

When you run this code, you gonna see all the elements of testArray will be replaced by 'A' like [“A”,"A","A","A","A","A","A"].

#javascript-tips #array-methods #javascript-development #javascript #arrays

Terry  Tremblay

Terry Tremblay

1602147513

Now Learn JavaScript Programming Language With Microsoft

icrosoft has released a new series of video tutorials on YouTube for novice programmers to get a hands-on renowned programming language — JavaScript.

This isn’t the first attempt by Microsoft to come up with video tutorials by beginner programmers. The company also has a series of YouTube tutorials on Python for beginners.

For JavaScript, Microsoft has launched a series of 51 videos as ‘Beginner’s Series to JavaScript,’ for young programmers, developers and coders who are interested in building browser applications using JavaScript. These video tutorials will also help programmers and coders to use relevant software development kits (SDKs) and JavaScript frameworks, such as Google’s Angular.


“Learning a new framework or development environment is made even more difficult when you don’t know the programming language,” stated on the Microsoft Developer channel on YouTube. “Fortunately, we’re here to help! We’ve created this series of videos to focus on the core concepts of JavaScript.”

It further stated — while the tutorials don’t cover every aspect of JavaScript, it indeed will help in building a foundation from which one can continue to grow. By the end of this series, Microsoft claims that the novice programmers will be able to work through tutorials, quick starts, books, and other resources, continuing to grow on their own.


#news #javascript #javascript tutorial #javascript tutorials #microsoft tutorials on javascript

Javascript Array Sort Example | JS Array sort() Method

Javascript array sort() is the inbuilt method that sorts all the items of the array in place and returns that array. The sort() method can also accept the parameter like function. So it will sort an array based on that function logic. The default sort order is built on converting the item into strings and then comparing their sequences of UTF-16 code unit values.

Javascript array sort example

The sort order can be either an alphabetic or the numeric, and either the ascending (up) or descending (down). Javascript array sort() method is not a pure function because the sort() method changes the original array.

Syntax

array.sort(compareFunction)

The compareFunction_() _parameter is an optional argument. The function that defines an alternative sort order and it should return a negative, zero, or positive value, depending on the arguments.

#javascript #js array sort

Tanya  Shields

Tanya Shields

1594911120

Learn Arrays And Array Methods in JavaScript

In JavaScript, an array is a data structure that contains list of elements which store multiple values in a single variable. The strength of JavaScript arrays lies in the array methods. Array methods are functions built-in to JavaScript that we can apply to our arrays — Each method has a unique function that performs a change or calculation to our array and saves us from writing common functions from scratch.
In this video we are going to learn arrays and array methods like sort(), reverse(), join(), split(), pop(), push(), shift(), unshift(), toString(), delete array, etc…

#javascript #arrays #array methods #programming