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JavaScript/jQuery to download file via POST with JSON data
...d single-page webapp. It communicates with a RESTful web service via AJAX calls.
14 Answers
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Set Focus on EditText
... set an OnFocusChangeListener for it. When it has lost focus, a method is called, which checks the value of the EditText with one in the database. If the return-value of the method is true, a toast is shown and the focus should get back on the EditText again. The focus should always get back on the ...
How to architect an Ember.js application
...assotti's answer, you should not be doing that for production code. Especially when we have such a powerful and easy to use project like Ember-CLI to show us the Yehuda approved happy path.
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What is the difference between “text” and new String(“text”)?
... a reference to an instance of class String, and is derived from a CONSTANT_String_info structure (§4.4.3) in the binary representation of a class or interface. The CONSTANT_String_info structure gives the sequence of Unicode code points constituting the string literal.
The Java programming la...
Creating a textarea with auto-resize
...I would have many many many such textareas (about as much as one would normally have lines in a large text document). In that case it is really slow. (In Firefox it's insanely slow.) So I really would like an approach that uses pure CSS. This would be possible with contenteditable, but I want it to ...
Vagrant stuck connection timeout retrying
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I really didn't understand what this does, but it worked. So thank you.
– Lavixu
Aug 16 '14 at 4:05
1
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Is there Selected Tab Changed Event in the standard WPF Tab Control
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I tied this in the handler to make it work:
void TabControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.Source is TabControl)
{
//do work when tab is changed
}
}
sh...
Gradle does not find tools.jar
...o use the package tools.jar, which is in the lib folder from the jdk (1.6.0_26 in my case).
21 Answers
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How to rollback a specific migration?
...nt to go back.
For example:
rake db:rollback STEP=5
Will also rollback all the migration that happened later (4, 3, 2 and also 1).
To roll back all migrations back to (and including) a target migration, use: (This corrected command was added AFTER all the comments pointing out the error in the ...
How can I have linebreaks in my long LaTeX equations?
...can be precisely controlled. e.g.
\begin{align*}
x&+y+\dots+\dots+x_100000000\\
&+x_100000001+\dots+\dots
\end{align*}
which would line up the first plus signs of each line... but obviously, you can set the alignments wherever you like.
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