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Storing time-series data, relational or non?
... description, the actual PK is (Device, Metric, DateTime). (Please don't call it TimeStamp, that means something else, but that is a minor issue.) The uniqueness of the row is identified by:
(Device, Metric, DateTime)
The Id column does nothing, it is totally and completely redundant.
A...
Make the current commit the only (initial) commit in a Git repository?
...e using submodules, you should use e.g. interactive rebase
Step 1: remove all history (Make sure you have backup, this cannot be reverted)
cat .git/config # note <github-uri>
rm -rf .git
Step 2: reconstruct the Git repo with only the current content
git init
git add .
git commit -m "Init...
Perform debounce in React.js
...>
AwesomeDebouncePromise(searchFunction, 300)
);
// The async callback is run each time the text changes,
// but as the search function is debounced, it does not
// fire a new request on each keystroke
const searchResults = useAsync(
async () => {
if (inputText.length ...
How to send a PUT/DELETE request in jQuery?
...ch as PUT and DELETE, can also be used here, but they are not supported by all browsers." from: api.jquery.com/jQuery.ajax/#options
– andilabs
Dec 2 '13 at 8:11
23
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How to make good reproducible pandas examples
...s.
Disclaimer: Writing a good question is HARD.
The Good:
do include small* example DataFrame, either as runnable code:
In [1]: df = pd.DataFrame([[1, 2], [1, 3], [4, 6]], columns=['A', 'B'])
or make it "copy and pasteable" using pd.read_clipboard(sep='\s\s+'), you can format the text for Sta...
Equivalent to 'app.config' for a library (DLL)
...
You can have separate configuration file, but you'll have to read it "manually", the ConfigurationManager.AppSettings["key"] will read only the config of the running assembly.
Assuming you're using Visual Studio as your IDE, you can right click the desired project → Add → New item → Applicat...
Navigation in django
...
I like this idea a lot, especially for flexibility, but it comes with the less-DRY trade-off. I did start using this in a site though.
– anonymous coward
Sep 22 '09 at 14:47
...
Check if two unordered lists are equal [duplicate]
...has a built-in datatype for an unordered collection of (hashable) things, called a set. If you convert both lists to sets, the comparison will be unordered.
set(x) == set(y)
Documentation on set
EDIT: @mdwhatcott points out that you want to check for duplicates. set ignores these, so you need ...
How would one write object-oriented code in C? [closed]
What are some ways to write object-oriented code in C? Especially with regard to polymorphism.
32 Answers
...
Looping through localStorage in HTML5 and JavaScript
...
In addition to all the other answers, you can use $.each function from the jQuery library:
$.each(localStorage, function(key, value){
// key magic
// value magic
});
Eventually, get the object with:
JSON.parse(localStorage.getI...