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How can I programmatically check whether a keyboard is present in iOS app?
...fications. These notifications
contain information about the
keyboard, including its size, which
you can use for calculations that
involve moving views. Registering for
these notifications is the only way to
get some types of information about
the keyboard. The system delivers the
fo...
How to sign an android apk file
... which will guide
you through the process of signing
your application, including steps for
selecting the private key with which
to sign the .apk (or creating a new
keystore and private key).
Complete the Export Wizard and your application will be compiled,
signed, aligned, and ready fo...
How can I remove all text after a character in bash?
... format:
/dirA/dirB/dirC/filename.file
Now you only want the path which includes four "/". Type
$ echo "/dirA/dirB/dirC/filename.file" | cut -f1-4 -d"/"
and your output will be
/dirA/dirB/dirC
The advantage of using cut is that you can also cut out the uppest directory as well as the file (...
Detect all changes to a (immediately) using JQuery
There are many ways the value of a <input type="text"> can change, including:
20 Answers
...
How to use Checkbox inside Select Option
...t/javascript">
$(function() {
$('#chkveg').multiselect({
includeSelectAllOption: true
});
$('#btnget').click(function(){
alert($('#chkveg').val());
});
});
</script>
</div>
</form>
</body>
</html>
Here's the DEMO
$(func...
Converting newline formatting from Mac to Windows
...FILE ...] [-n INFILE OUTFILE ...]
DESCRIPTION
The Dos2unix package includes utilities "dos2unix" and "unix2dos" to convert plain text files in DOS or MAC format to UNIX format and vice versa. Binary files and non-
regular files, such as soft links, are automatically skipped, unless c...
Make Font Awesome icons in a circle?
...cle using em as the base measurement
if you use ems for the measurements, including line-height, font-size and border-radius, with text-align: center it makes things pretty solid:
#info i {
font-size: 1.6em;
width: 1.6em;
text-align: center;
line-height: 1.6em;
background: #666;
color:...
How can I handle the warning of file_get_contents() function in PHP?
...ghout your app, you would only need to do this once, way at the top (in an included config file, for instance), and it will convert all your errors to Exceptions throughout.
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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...ted in Node v. 4.0+ and in most modern browsers in use as of 2018. (I’ve included a partial list of supporting browsers below).
You can read more in the Mozilla documentation on arrow functions.
From the Mozilla documentation:
An arrow function expression (also known as fat arrow function) has a ...
Rails 2.3-style plugins and deprecation warnings running task in Heroku
...ugins in Rails 3.x applications ..
To avoid this
injection in Rails 3, include the rails_12factor gem in your
application. (Heroku Ruby Support 2013-10-26)
The rails_12factor gem is also required in rails 4.
If this gem is not present in your application, you will receive a
warning whi...