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Javascript !instanceof If Statement
...he outside.
if(!(obj instanceof Array)) {
//...
}
In this case, the order of precedence is important (https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Operator_Precedence). The ! operator precedes the instanceof operator.
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Add one row to pandas DataFrame
...ept when I created the data frame, the columns names were all in the wrong order...
– user5359531
Aug 9 '16 at 21:36
5
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How are everyday machines programmed?
... (not so much computers and mobile devices as appliances, digital watches, etc) programmed? What kind of code goes into the programming of a Coca-Cola vending machine? How does my coffee maker accept a pre-programmed time and begin brewing a pot of coffee hours later, when that time arrives?
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Is there a way to provide named parameters in a function call in JavaScript?
... The only thing with this technique is the fact that you can't change the order of the parameters... I am personally fine with that though.
– Ray Perea
Jul 10 '14 at 20:11
14
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How to create a GUID/UUID in Python
...ain characters that can cause problems in some situations such as '+','=', etc..
Instead of hexadecimal, I use a url-safe base64 string. The following does not conform to any UUID/GUID spec though (other than having the required amount of randomness).
import base64
import uuid
# get a UUID - URL ...
Datatables: Cannot read property 'mData' of undefined
...columns doesn't add up. I didn't have any conditions on the table, such as order or sortable. I did add those after I got it working.
– Greg
Mar 24 '18 at 4:38
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How can I push a specific commit to a remote, and not previous commits?
...without pushing previous commits, you should first use git rebase -i to re-order the commits.
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How do I update zsh to the latest version?
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# check the zsh info
brew info zsh
# install zsh
brew install --without-etcdir zsh
# add shell path
sudo vim /etc/shells
# add the following line into the very end of the file(/etc/shells)
/usr/local/bin/zsh
# change default shell
chsh -s /usr/local/bin/zsh
Hope it helps, thanks.
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Python group by
...8544'], 'type': 'NOT'}]
Note both of these do not respect the original order of the keys. You need an OrderedDict if you need to keep the order.
>>> from collections import OrderedDict
>>> res = OrderedDict()
>>> for v, k in input:
... if k in res: res[k].append(v)
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What is the most ridiculous pessimization you've seen? [closed]
...ster, but it ends up being slower, as well as being buggy, unmaintainable, etc. What is the most ridiculous example of this that you've seen?
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