Add and remove elements from JavaScript array

Here I show how to add ,remove elements and get a comma separated string from JavaScript array

 

Add / Remove elements from array

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1. var myArray = ["Sameera","Sanath"];  
2.   
3. //Add element to array  
4. myArray.push("Amila");  
5.   
6.   
7. //Check already contains and add an element  
8. if ($.inArray("Jaya" ,myArray) == -1){  
9.     myArray.push("Jaya");  
10. }  
11.   
12. console.log(myArray);  
13.   
14.   
15. //Remove element from array  
16.   
17. var index = $.inArray("Sanath", myArray);  
18. myArray.splice(index, 1);  
19.   
20. console.log(myArray);      

var myArray = ["Sameera","Sanath"];

//Add element to array
myArray.push("Amila");


//Check already contains and add an element
if ($.inArray("Jaya" ,myArray) == -1){
    myArray.push("Jaya");
}

console.log(myArray);


//Remove element from array

var index = $.inArray("Sanath", myArray);
myArray.splice(index, 1);

console.log(myArray);    

Here I used Jquery  index = $.inArray("Sanath", myArray); to get index of the element. We can also get the index by index = myArray.indexOf("Sanath"); .But indexOf does not work on IE 8 and below.

Get a comma separated string from array

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1. //Get comma separated string from array  
2. var myArray = ["Sameera","Sanath","Jaya"];  
3. var myUsers = myArray.join(",");  
4. console.log(myUsers);  

//Get comma separated string from array
var myArray = ["Sameera","Sanath","Jaya"];
var myUsers = myArray.join(",");
console.log(myUsers);