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wget/curl large file from google drive
...with something like
wget https://googledrive.com/host/LARGEPUBLICFOLDERID/index4phlat.tar.gz
Alternatively, you can use this script: https://github.com/circulosmeos/gdown.pl
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add a string prefix to each value in a string column using Pandas
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thank you. if of interest, dataframe indexes also support such string manipulations.
– tagoma
Jul 10 '17 at 21:30
2
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MongoDB vs. Cassandra [closed]
...less data models (and encourage denormalization instead), and both provide indexes on documents or rows, although MongoDB's indexes are currently more flexible.
Cassandra's storage engine provides constant-time writes no matter how big your data set grows. Writes are more problematic in MongoDB, pa...
How to check if array element exists or not in javascript?
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Use typeof arrayName[index] === 'undefined'
i.e.
if(typeof arrayName[index] === 'undefined') {
// does not exist
}
else {
// does exist
}
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Keep ignored files out of git status
...or untracked files. If you added files to repository, you can:
git update-index --assume-unchanged <file>
or remove them from repository by
git rm --cached <file>
Edit
This article explains that too
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Surrogate vs. natural/business keys [closed]
... for a logical primary key. They are both essentially just non-null unique index constraints.
– dkretz
Feb 12 '09 at 22:11
1
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How to escape double quotes in a title attribute
...te (for javascript to produce editable textarea): data-editable-note="<?php echo str_replace('"', '&quot;', $note); ?>"><?php echo mark::up($note); ?></div>
– WEBjuju
Sep 23 '19 at 13:05
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Difference between /res and /assets directories
...o declare a list of all the resource IDs that might be used and compute an index into the the list. (This is kind of awkward and introduces opportunities for error if the set of resources changes in the development cycle.) (EDIT: you can retrieve a resource ID by name using getIdentifier, but this l...
Create an array with random values
... @AfricanMatt, _ is the current element and i is the current index. You're right, they are unnecessary in both cases. You can remove them if you like.
– Eugene Kulabuhov
Feb 10 '17 at 17:16
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Convert a list to a dictionary in Python
...or this pretty easily:
a = ['hello','world','1','2']
my_dict = {item : a[index+1] for index, item in enumerate(a) if index % 2 == 0}
This is equivalent to the for loop below:
my_dict = {}
for index, item in enumerate(a):
if index % 2 == 0:
my_dict[item] = a[index+1]
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