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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...fault value to some mutable object (i.e. list or dict), because it will be one object used as value for every key in the dictionary (check here for a solution for this case). Numbers/strings are safe.
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How To Set Text In An EditText
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Note all Strings are CharSequences, so this one works, but a raw CharSequence is not a String. If you have a raw CharSequence and REQUIRE a String, you need to call myCharSequence.toString() to get the official String. Not needed to know for THIS application, but som...
Undo git mv (rename)
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If you have done no other changes (that you want to keep) since the last commit, you can do
git reset --hard
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Print list without brackets in a single row
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Here is a simple one.
names = ["Sam", "Peter", "James", "Julian", "Ann"]
print(*names, sep=", ")
the star unpacks the list and return every element in the list.
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JavaScript hashmap equivalent
...obj1)] = obj1;
dict[key(obj2)] = obj2;
This way you can control indexing done by JavaScript without heavy lifting of memory allocation, and overflow handling.
Of course, if you truly want the "industrial-grade solution", you can build a class parameterized by the key function, and with all the nece...
How do iOS Push Notifications work?
...the notification load, you would typically deploy multiple providers, each one with its own persistent and secure connection to APNs. Each provider can then send notification requests targeting any device for which the provider has a valid device token.
Figure 1-2 Pushing remote notifications from m...
Git: How do I list only local branches?
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One of the most straightforward ways to do it is
git for-each-ref --format='%(refname:short)' refs/heads/
This works perfectly for scripts as well.
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Difference between & and && in Java? [duplicate]
...ore complete than the "logical and bitwise" which doesn't tell much to someone answering this question.
– notbad.jpeg
Sep 24 '12 at 18:47
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Regular expressions in C: examples?
...e that the Linux manpage for regcomp says "cflags may be the bitwise-or of one or more of the following", which does seem misleading.
– Laurence Gonsalves
Sep 22 '13 at 18:11
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I need to securely store a username and password in Python, what are my options?
...measure of security so at the very least it would take a long time for someone to break it.
8 Answers
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