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Favorite Django Tips & Features?
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This alleviates you from always type os.path.join() which gets annoying pretty fast: j = lambda filename: os.path.join(PROJECT_DIR, filename). Then you just need to type j("static").
– wr.
Ma...
How do you convert a DataTable into a generic list?
...e DataTableExtensions.AsEnumerable (an extension method) and then if you really need a List<DataRow> instead of just IEnumerable<DataRow> you can call Enumerable.ToList:
IEnumerable<DataRow> sequence = dt.AsEnumerable();
or
using System.Linq;
...
List<DataRow> list = dt.A...
Integrating Dropzone.js into existing HTML form with other fields
...in your form with a classname dropzone, and implement dropzone programmatically.
HTML :
<div id="dZUpload" class="dropzone">
<div class="dz-default dz-message"></div>
</div>
JQuery:
$(document).ready(function () {
Dropzone.autoDiscover = false;
$("#dZUpl...
Creating C formatted strings (not printing them)
...ee snprintf for a safer version).
A terminating null character is automatically appended after the
content.
After the format parameter, the function expects at least as many
additional arguments as needed for format.
Parameters:
str
Pointer to a buffer where the resulting C-string is stored. The ...
编译失败！ Error: Your build failed due to an error in the AAPT stage,...
...tivity> attribute name has invalid character
[java] /tmp/1685410160630_0.39828964915976717-0/youngandroidproject/../build/AndroidManifest.xml:5: Tag <activity> attribute name has invalid character '�'.
[java] May 30, 2023 9:29:27 AM com.google.appinventor.build...
How to delete an SMS from the inbox in Android programmatically?
... onReceive() method, before performing anything with your message, simply call abortBroadcast();
EDIT: As of KitKat, this doesn't work anymore apparently.
EDIT2: More info on how to do it on KitKat here:
Delete SMS from android on 4.4.4 (Affected rows = 0(Zero), after deleted)
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Is there a ceiling equivalent of // operator in Python?
...t shy of an order of magnitude faster than forcing the float division and calling ceil(), provided you care about the speed. Which you shouldn't, unless you've proven through usage that you need to.
>>> timeit.timeit("((5 - 1) // 4) + 1", number = 100000000)
1.7249219375662506
>>>...
When do items in HTML5 local storage expire?
...may run into space considerations. It's good to program defensively. Generally however things remain "forever" based on some practical definition of that word.
edit — obviously, your own application can actively remove stuff if it decides it's too old. That is, you can explicitly include some so...
In Python, if I return inside a “with” block, will the file still close?
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@RikPoggi os._exit is sometimes used - it exits the Python process without calling cleanup handlers.
– Acumenus
Oct 8 '16 at 6:25
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Input text dialog Android
...et it as the view of the AlertDialog. You can customize the type of input allowed using setInputType, if you need.
If you're able to use a member variable, you can simply set the variable to the value of the EditText, and it will persist after the dialog has dismissed. If you can't use a member v...