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Check if image exists on server using JavaScript?
...pen('HEAD', image_url, false);
http.send();
return http.status != 404;
}
Obviously you could use jQuery/similar to perform your HTTP request.
$.get(image_url)
.done(function() {
// Do something now you know the image exists.
}).fail(function() {
// Image doesn...
Synthetic Class in Java
... |
edited Sep 21 '15 at 14:43
Marco
8,48611 gold badge3131 silver badges4848 bronze badges
answered Dec...
Linux command: How to 'find' only text files?
...
184
I know this is an old thread, but I stumbled across it and thought I'd share my method which I h...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
... |
edited Oct 30 '14 at 9:58
answered Dec 21 '11 at 18:51
...
Getting the minimum of two values in SQL
...alized.
– Softlion
Jan 16 '12 at 11:49
1
Another reason to prefer @Craig's answer below is due to...
How to concatenate stdin and a string?
...
|
edited Dec 14 '12 at 18:32
answered Dec 14 '12 at 18:24
...
How to detect a textbox's content has changed
... |
edited May 15 '14 at 8:50
Community♦
111 silver badge
answered Mar 31 '12 at 12:09
...
form_for with nested resources
...es :articles do
resources :comments
end
You get paths like:
/articles/42
/articles/42/comments/99
routed to controllers at
app/controllers/articles_controller.rb
app/controllers/comments_controller.rb
just as it says at http://guides.rubyonrails.org/routing.html#nested-resources, with no s...
How to delete cookies on an ASP.NET website
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148
Try something like that:
if (Request.Cookies["userId"] != null)
{
Response.Cookies["userId...
Retrieve a single file from a repository
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148
in git version 1.7.9.5 this seems to work to export a single file from a remote
git archive --...