how would i implement something like jquerys .data() in pure javascript?

Question

A project I am working on for works wants a pure JavaScript version of the .data() implementation of jQuery.

I wanted to replicate this.

I did a search and Where is jQuery.data() stored? shows where in jQuery it is stored.

I was hoping that i could just attach a datasegment to an HTML element for accessing later.

Since jQuery is Javascript, I can look there, but it makes use of the jQuery objects, which is what I am trying to abstract. I figured there was some sort of way to associate a hash table like dataset with JavaScript and attach it to an object.

I was hoping that i could just attach a datasegment to a html element for accessing later. Did you try it? What did you discover? — Evan Davis
– Evan Davis, Commented Sep 26, 2013 at 14:43
You're right. element.getAttribute(). Too many frameworks for one lifetime. — Diodeus - James MacFarlane
– Diodeus - James MacFarlane, Commented Sep 26, 2013 at 14:48

Fallenreaper · Accepted Answer · 2013-09-26 14:53:31Z

3

http://jsfiddle.net/npXQx/

shows you can create a .data in the object and then it is preserved. You can access it twice, and the data is there.

This example shows a simple string assignment and a function and it being called multiple times.

var item = document.getElementById("hi");
console.log(item);

item.data = {getType: function(){return this.TYPE},TYPE:"winner"};

var out = item.data.getType();
console.log("out", out);

var two = document.getElementById("hi")
console.log("should say 'winner': ", two.data.getType());

answered Sep 26, 2013 at 14:53

Fallenreaper

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