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How can I check if an element exists in the visible DOM?
How do you test an element for existence without the use of the getElementById method?
25 Answers
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How to force an entire layout View refresh?
I want to force the main layout resource view to redraw / refresh, in say the Activity.onResume() method. How can I do this ?
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How do I get SUM function in MySQL to return '0' if no values are found?
...ease see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
I...
How to launch jQuery Fancybox on page load?
...our solution $("#hidden_link").fancybox().trigger('click'); works perfect for me.
– Mukesh
Feb 22 '14 at 10:50
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Asynchronously load images with jQuery
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No need for ajax. You can create a new image element, set its source attribute and place it somewhere in the document once it has finished loading:
var img = $("<img />").attr('src', 'http://somedomain.com/image.jpg')
.on(...
Is there a way to “autosign” commits in Git with a GPG key?
...ime to make sure your commits are signed, there is a proposal (branch 'pu' for now, December 2013, so no guarantee it will make it to a git release) to add a config which will take care of that option for you.
Update May 2014: it is in Git 2.0 (after being resend in this patch series)
See commit 2a...
Return JSON response from Flask view
...on that analyzes a CSV file with Pandas and produces a dict with summary information. I want to return the results as a response from a Flask view. How do I return a JSON response?
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Putting HTML inside Html.ActionLink(), plus No Link Text?
...gt;, my dev isn't around to ask why I had to do this but it may be helpful for anyone tring to use the above answer and finding it didnt work.
– Dave Haigh
Jul 12 '13 at 8:12
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PDO mysql: How to know if insert was successful
...on success. There is also PDOStatement->errorCode() which you can check for errors.
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Creating a URL in the controller .NET MVC
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Followup: For the second to last parameter (the RouteValueDictionary) here is an example: new System.Web.Routing.RouteValueDictionary(new { id = 1 })
– Matthew M.
Mar 23 '10 at 5:49
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