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How to remove a key from a Python dictionary?
When deleting a key from a dictionary, I use:
13 Answers
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How do I run a program with a different working directory from current, from Linux shell?
... Linux shell , how do I start a program with a different working directory from the current working directory?
11 Answers
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What does Serializable mean?
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Serialization is persisting an object from memory to a sequence of bits, for instance for saving onto the disk. Deserialization is the opposite - reading data from the disk to hydrate/create an object.
In the context of your question, it is an interface that if ...
How to search and replace globally, starting from the cursor position and wrapping around the end of
...-&&
First, the substitution command is run for each line starting from
the current one until the end of file:
,$s/BEFORE/AFTER/gc
Then, that :substitute command is repeated with the same search
pattern, replacement string, and flags, using the :& command
(see :help :&):
1,''-&...
For-each over an array in JavaScript
...rue and omitting the ones where it returns false)
map (creates a new array from the values returned by the callback)
reduce (builds up a value by repeatedly calling the callback, passing in previous values; see the spec for the details; useful for summing the contents of an array and many other thin...
S3 Static Website Hosting Route All Paths to Index.html
...lt;/script>
This grabs the hash and turns it into an HTML5 pushState. From this point on you can use pushStates to have non-hash-bang paths in your app.
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Deny all, allow only one IP through htaccess
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order deny,allow
deny from all
allow from <your ip>
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How to retrieve an element from a set without removing it?
...equire copying the whole set:
for e in s:
break
# e is now an element from s
Or...
e = next(iter(s))
But in general, sets don't support indexing or slicing.
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Why do browsers match CSS selectors from right to left?
CSS Selectors are matched by browser engines from right to left. So they first find the children and then check their parents to see if they match the rest of the parts of the rule.
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How to make Git “forget” about a file that was tracked but is now in .gitignore?
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.gitignore will prevent untracked files from being added (without an add -f) to the set of files tracked by git, however git will continue to track any files that are already being tracked.
To stop tracking a file you need to remove it from the index. This can be ...