How to set null value to variable using JavaScript or jQuery?

Question

I'm storing an image value in the variable first_img:

var first_img = $('img[alt="example"]').attr('src');

And I want to set the value null after the button is clicked JavaScript or jQuery.

How can I do this?

Are you trying to remove the image or just do what you're asking, set first_img to null ? — adeneo
– adeneo, Commented Aug 28, 2012 at 11:32

Darin Dimitrov · Accepted Answer · 2012-08-28 11:27:38Z

1

You could remove the src attribute when the image is clicked:

$('img[alt="example"]').click(function() {
    $(this).removeAttr('src');
});

or completely remove the <img> tag from the DOM:

$('img[alt="example"]').click(function() {
    $(this).remove();
});

answered Aug 28, 2012 at 11:27

Darin Dimitrov

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1 Comment

KooiInc Over a year ago

note: $(this).removeAttr('src') doesn't work, see my jsfiddle @ jsfiddle.net/KooiInc/duDxb

adeneo · Accepted Answer · 2012-08-28 11:27:54Z

1

Not sure I get this at all, as it sounds kinda obvious?

var first_img = $('img[alt="example"]').attr('src');

$('button').on('click', function() {
    first_img = null;
});

answered Aug 28, 2012 at 11:27

adeneo

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Comments

KooiInc · Accepted Answer · 2012-08-28 11:33:05Z

1

var first_img = $('<img alt="example"/>').attr('src',[...] )
 .on('click',
      function(){$(this).remove()}
  );

see jsfiddle

answered Aug 28, 2012 at 11:33

KooiInc

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Comments

Sunil Marwaha · Accepted Answer · 2012-08-28 12:07:48Z

1

Try this:-`enter code here`
***$('img[alt="example"]').click(function() {
    $(this).removeAttr('src');
});***

answered Aug 28, 2012 at 12:07

Sunil Marwaha

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