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Invalidating JSON Web Tokens
...ing over from a cookie based session approach (by this, I mean, storing an id to a key-value store containing user sessions in a user's browser) to a token-based session approach (no key-value store) using JSON Web Tokens (jwt).
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Get cursor position (in characters) within a text Input field
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What is the idea of "oField.focus()"? It works for me without this line. Be careful if you use blur event on your input and execute that function inside a callback.
– Kirill Reznikov
Sep 14 '15 at ...
What's “requestCode” used for on PendingIntent?
...ance later on (for cancelling, etc).
Yes, my guess is the alarms will override each other. I would keep the request codes unique.
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Is is possible to check if an object is already attached to a data context in Entity Framework?
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Here's what I ended up with, which works very nicely:
public static void AttachToOrGet<T>(this ObjectContext context, string entitySetName, ref T entity)
where T : IEntityWithKey
{
ObjectStateEntry entry;
// Track whether we need to perform an attach
bool attach = false;
...
jQuery append fadeIn
...m you just added to it. Instead, construct your item first and apply the hide().fadeIn() before adding it:
$('#thumbnails')
.append($('<li><img src="/photos/t/'+data.filename+'"/></li>')
.hide()
.fadeIn(2000)
);
This uses the dollar function to construct...
Restricting input to textbox: allowing only numbers and decimal point
...->
</SCRIPT>
</HEAD>
<BODY>
<INPUT id="txtChar" onkeypress="return isNumberKey(event)"
type="text" name="txtChar">
</BODY>
</HTML>
This really works!
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How to determine the current shell I'm working on
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ps -ef | grep $$ | grep -v grep - this will look for the current process ID in the list of running processes. Since the current process is the shell, it will be included.
This is not 100% reliable, as you might have other processes whose ps listing includes the same number as shell's process ID, ...
How to change the style of the title attribute inside an anchor tag?
...o.png) #f0f0f0 no-repeat 100% 5%;
left: 0px;
margin: 10px;
width: 250px;
position: absolute;
top: 10px;
text-decoration: none
}
<a href="#" class="tip">Link<span>This is the CSS tooltip showing up when you mouse over the link</span></a>
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Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...ectly in the serialport1_DataReceived method, use this pattern:
delegate void SetTextCallback(string text);
private void SetText(string text)
{
// InvokeRequired required compares the thread ID of the
// calling thread to the thread ID of the creating thread.
// If these threads are different...
How do you attach and detach from Docker's process?
... new process from the existing container:
sudo docker exec -ti [CONTAINER-ID] bash
will start a new process with bash shell, and you could escape from it by Ctrl+C directly, it won't affect the original process.
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