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Better way to check variable for null or empty string?
...sses and fall back to it. It sounds far more work that hacking a quick PHP script (and it is the first time), but it's reusable, flexible, and much less error prone since form validation with usual PHP tends to quickly become spaguetti code.
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Including JavaScript class definition from another file in Node.js
...name the file to user.js. Assuming it's in the root directory of your main script, you can include it like this:
var user = require('./user');
var someUser = new user.User();
That's the quick and dirty version. Read about CommonJS Modules if you'd like to learn more.
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How to find out the number of CPUs using python
...sched_getaffinity.
Therefore, if you use multiprocessing.cpu_count(), your script might try to use way more cores than it has available, which may lead to overload and timeouts.
We can see the difference concretely by restricting the affinity with the taskset utility, which allows us to control the ...
HTML5 Video Dimensions
...get the dimensions of a video of which I'm overlaying onto a page with JavaScript, however it is returning the dimensions of the poster image instead of the actual video as it seems it's being calculated before the video is loaded.
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Using curl to upload POST data with files
...pi.endpoint.post" the following vars posted. You can easily test with this script, and you should be receive this debugs on the function postFile() at the last row.
print_r($response); //print response
public function getPostFile()
{
echo "\n\n_SERVER\n";
echo "<pre>";
print_r($...
What is the purpose of Flask's context stacks?
...tension object
db.init_app(app)
Then they use the app and db values in a script that should be run from the shell. For example, a "setup_tables.py" script...
from myapp import app, db
# Set up models
db.create_all()
In this case, the Flask-SQLAlchemy extension knows about the app application, ...
Is it possible to stop JavaScript execution? [duplicate]
Is it possible in some way to stop or terminate JavaScript in a way that it prevents any further JavaScript-based execution from occuring, without reloading the browser?
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How to delete files older than X hours
I'm writing a bash script that needs to delete old files.
10 Answers
10
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Switch Git branch without files checkout
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The git-new-worktree script predates git worktree subcommand; this command was not available when the answer was written. The script for example requires symlink support; IMHO it is better to use native support.
– Jakub Nar...
How to pass parameters on onChange of html select
I am a novice at JavaScript and jQuery. I want to show one combobox-A, which is an HTML <select> with its selected id and contents at the other place on onChange().
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