Can you set multiple attributes with the DOM's setAttribute function?

Question

Let\'s say I wanted to create an input element using the DOM. Instead of doing something like this

var input = document.createElement(\"input\");
input.setAt         


        

Answer 1

Element.setAttribute sets a single attribute, but you could easily write a helper function:

function setAttributes(elements, attributes) {
  Object.keys(attributes).forEach(function(name) {
    element.setAttribute(name, attributes[name]);
  })
}

Usage:

var input = document.createElement("input");
setAttributes(input, {
  class: "my-class",
  type: "checkbox",
  checked: "checked"
})

As other answers say, you could also use $.attr. That's great if your project already uses jQuery. If it doesn't, I'd use this function rather than adding a fairly heavyweight dependency for a simple task.

Answer 2

In jQuery you can do:

var $input = $("<input>", {class: "my-class", type: "checkbox", checked:"checked"});

Answer 3

var opt = {"class":"my-class", "type": "checkbox", "checked":"checked"};

Object.keys(opt).forEach( function(key){ input.setAttribute(key,opt[key]); } );

Answer 4

Yes, You can do using Jquery.

$(input).attr(
{
  "data-test-1": num1, 
  "data-test-2": num2
});

Answer 5

I personally think you're taking DRY too far (the three statements do different things, so I don't see how it's not DRY.) But if you must abstract it, just write a function to do it:

var input = document.createElement("input");

function setAttributes(el, options) {
   Object.keys(options).forEach(function(attr) {
     el.setAttribute(attr, options[attr]);
   })
}

setAttributes(input, {"class": "my-class", "type": "checkbox", "checked": "checked"});

console.log(input);