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Chain-calling parent initialisers in python [duplicate]
...l return the init method of your obj as if init in class X not been there. Now, if class X has two parents, and X.__init__ doesnt exist, the default behavior is to call init of only one of the parents, not both. This is effectively what super is doing... giving you one of the parents.
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Delete first character of a string in Javascript
...(0) == unwantedCharacter ) yourString = yourString.substr(1);
//yourString now contains "test"
.slice() vs .substring() vs .substr()
Quote from (and more on that in) What is the difference between String.slice and String.substring?
He also points out that if the parameters to slice are negative, t...
How to join two sets in one line without using “|”
... id(c) == id(a). Even if a was destroyed, c wouldn't have been. Also, c is now set([1, 2, 3, 4]), so @jorgenkg's comment is correct.
– johndodo
Jan 19 '18 at 10:07
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Selecting only numeric columns from a data frame
...de
## nums <- sapply(x, is.numeric)
For a more idiomatic modern R I'd now recommend
x[ , purrr::map_lgl(x, is.numeric)]
Less codey, less reflecting R's particular quirks, and more straightforward, and robust to use on database-back-ended tibbles:
dplyr::select_if(x, is.numeric)
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Why Doesn't C# Allow Static Methods to Implement an Interface?
... edited Jan 10 at 17:03
Dan Jagnow
73388 silver badges2121 bronze badges
answered Nov 3 '08 at 17:37
Mark Bra...
Find out whether radio button is checked with JQuery?
...) alert('is checked');
alert('check-checky-check was changed');
});
Now when you programmatically change the state, you have to trigger this event also:
$('#radio_button').attr("checked", "checked");
$('#radio_button').click();
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CSS word-wrapping in div
...ext is wider than that i want it to break down. The div is float: left and now has an overflow. I want the scrollbar to go away by using word-wrapping. How can i achieve this?
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Add new field to every document in a MongoDB collection
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Pymongo 3.9+
update() is now deprecated and you should use replace_one(), update_one(), or update_many() instead.
In my case I used update_many() and it solved my issue:
db.your_collection.update_many({}, {"$set": {"new_field": "value"}}, upsert=Fa...
How do I use vimdiff to resolve a git merge conflict?
... I got Automatic merge failed; fix conflicts and then commit the result. Now I ran git mergetool and vimdiff opened with the image below. I don't know how to use vimdiff. What does each panel here mean and how should I proceed to fix the merge conflict?
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Passing parameters in rails redirect_to
How do we pass parameters in redirect_to in rails?
I know we can pass id using this:
9 Answers
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