Creating C# like List in JavaScript / Jquery / NodeJS

Question

I want to create C# like list in JavaScript. In C# we can say List<string> ListName = new List<string>();

And then it allows you to add N number of members to the list by using add method.

ListName.add("1");
ListName.add("2");
..
..
ListName.add("N");

How can I create similar list in JavaScript.

I was thinking of using array but it forces me to specify the size.

var a = new Array(5); 
a = [0, 0, 0, 0, 0]; 
var a = new Array(0, 0, 0, 0, 0);

i just want to know something you managed to learn C# and having trouble using the basic in javascript? you might need a bacic javascript tutorial — Gntem
– Gntem, Commented Mar 27, 2014 at 12:51
@Phoenix: Very valid point. But I declared array like this var a = [] and was able to push the data. But while accessing I was not able to retrieve the value. And I got confused. It turned out that I added a semicolon in front of for loop and values were printed as undefined. — SharpCoder
– SharpCoder, Commented Mar 27, 2014 at 13:12

Tudor Zgureanu · Accepted Answer · 2014-03-27 12:42:28Z

7

var someArray = [];
someArray .push(elem);

that's all.

P.S. There are also lots of interesting things. So, I advise you to check MDN documentation

answered Mar 27, 2014 at 12:42

Tudor Zgureanu

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7 Comments

SharpCoder Over a year ago

How do I retrieve this value using for loop?

Tudor Zgureanu Over a year ago

you can retrieve this by using plain for loop either array's foreach. for (var i = 0; i < someArray.length; i++) {console.log(someArray[i]) }

SharpCoder Over a year ago

I created this fiddle jsfiddle.net/RhUc9 . What is wrong with it? I am not able to access by array[i]. This is the whole reason I posted this question

Tudor Zgureanu Over a year ago

Actually I don't see any fiddle in this topic.

Tudor Zgureanu Over a year ago

That's ok. :) Good luck with JS. It's a really powerful language. I picked JS half year ago, and I really like it. (a java developer)

|

Saurabh Chauhan · Accepted Answer · 2014-03-27 12:46:19Z

0

Nope in javascript also you can declare a array like

    var yourarr=[];

this will create a dynamic array and then you can add value in it like

      yourarr.push(value1);
      yourarr.push(value2);
       .
       .
     yourarr.push(valueN);

And also pop them out as yourarr.pop();

this will pop out last value from the array and you can also use indexing to retrieve value and perform on them.

And it dynamic no need to give any Size.

answered Mar 27, 2014 at 12:46

Saurabh Chauhan

1448 bronze badges

Comments

anar khalilov · Accepted Answer · 2014-03-28 13:24:11Z

0

var listName = [];
listName.push("1");
listName.push("2");
..
..
listName.push("N");         // At this step listName = ["1", "2", ... "N"]

Then you can loop through array items like:

for (var i = 0; i < listName.length; i++)
{
    console.log(listName[i]);
}

edited Mar 28, 2014 at 13:24

answered Mar 27, 2014 at 12:44

anar khalilov

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2 Comments

SharpCoder Over a year ago

How do I retrieve the value?? var a = []; a.push(1); a.push(2); for(i =0; i < a.length; i++); { console.log(a.length); console.log(a[i]); }

anar khalilov Over a year ago

You have already written how you can retrieve items from the array.

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