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What is the easiest way to remove all packages installed by pip?
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I've found this snippet as an alternative solution. It's a more graceful removal of libraries than remaking the virtualenv:
pip freeze | xargs pip uninstall -y
In case you have packages installed via VCS, you need to exclude those lines and remove the packages manually (e...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
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You can use an utility function like this:
get = function(obj, key) {
return key.split(".").reduce(function(o, x) {
return (typeof o == "undefined" || o === null) ? o : o[x];
}, obj);
}
Usage:
get(user, 'loc.lat') // 50...
Using an ORM or plain SQL? [closed]
...e of the apps I've developed (then proceeded to forget about), I've been writing plain SQL, primarily for MySQL. Though I have used ORMs in python like SQLAlchemy , I didn't stick with them for long. Usually it was either the documentation or complexity (from my point of view) holding me back.
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What's a Good Javascript Time Picker? [closed]
...dalone js? I would like something like google uses in their calendar where it has a drop down of common times in 15min intervals or lets you manually type in a time and it validates it.
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Medium-size Clojure sample application?
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I recommend cow-blog by Brian Carper. According to the author it was written with your purpose in mind.
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Is there a git-merge --dry-run option?
...ng in a remote branch that may have a lot of conflicts. How can I tell if it will have conflicts or not?
18 Answers
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Moving decimal places over in a double
...ve a double set to equal 1234, I want to move a decimal place over to make it 12.34
9 Answers
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Rest with Express.js nested router
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You can nest routers by attaching them as middleware on an other router, with or without params.
You must pass {mergeParams: true} to the child router if you want to access the params from the parent router.
mergeParams was introduced in Express 4.5.0 (Jul 5 2014)
In this example the itemRoute...
Android Whatsapp/Chat Examples [closed]
...plication like WhatsApp ? I want to understand how WhatsApp works and how it is programmed.
2 Answers
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Why does base64 encoding require padding if the input length is not divisible by 3?
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Your conclusion that padding is unnecessary is right. It's always possible to determine the length of the input unambiguously from the length of the encoded sequence.
However, padding is useful in situations where base64 encoded strings are concatenated in such a way that the l...