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How to pass prepareForSegue: an object
...egueWithIdentifier:sender: method to activate the transition to a new view based on a selection or button press.
For instance, consider I had two view controllers. The first contains three buttons and the second needs to know which of those buttons has been pressed before the transition. You co...
How to create a GUID/UUID in Python
... they keep updating)
>>> import uuid
>>> # make a UUID based on the host ID and current time
>>> uuid.uuid1()
UUID('a8098c1a-f86e-11da-bd1a-00112444be1e')
>>> # make a UUID using an MD5 hash of a namespace UUID and a name
>>> uuid.uuid3(uuid.NAMESPACE_...
Vagrant stuck connection timeout retrying
...or: VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit quest will fail to detect a 64-bit CPU and will not be able to boot
– SKuijers
Jan 9 '15 at 11:34
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What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?
...8px
col-lg-* - 992px
col-xl-* - 1200px
col-xxl-* - 1400px
Bootstrap 5 Grid Demo
Bootstrap 4
In Bootstrap 4 there is a new -xl- size, see this demo. Also the -xs- infix has been removed, so smallest columns are simply col-1, col-2.. col-12, etc..
col-* - 0 (xs)
col-sm-* - 576px
col-md-* - 768px
col-...
onchange event on input type=range is not triggering in firefox while dragging
...onRangeChange function from the summary above (simplified/minified) or the demo code snippet below (functionally identical but more self-explanatory) in your own code. Invoke it as follows:
onRangeChange(myRangeInputElmt, myListener);
where myRangeInputElmt is your desired <input type="range"&...
How can I make a jQuery UI 'draggable()' div draggable for touchscreen?
...ui.js can be found here:
Jquery-ui sortable doesn't work on touch devices based on Android or IOS
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Convert NSData to String?
...yData);
You can use an online converter to convert your binary data into base 64 (http://tomeko.net/online_tools/hex_to_base64.php?lang=en) and compare it to the private key in your cert file after using the following command and checking the output of mypkey.pem:
openssl pkcs12 -in myCert.p12 -n...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
...
Springy heads gives spring based behaviour of chat heads out of the box. All you have to define is the drawable for the chat head and the fragment to open once the chat head is clicked. The chat heads collapse when minimized and follow the finger when ...
How can I export tables to Excel from a webpage [closed]
...de for those browser that do not support it.
You may also need to perform base64 encoding on the data URI content, which may require a js library, as well as adding the string ';base64' after the mime type in the data URI.
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When does a process get SIGABRT (signal 6)?
... an example for this.
Here when d is to be constructed, it first calls its base class A ctor,
and passes inside pointer to itself.
the A ctor calls pure virtual method before table was filled with valid pointer,
because d is not constructed yet.
#include<iostream>
using namespace std;
class ...