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INSERT IF NOT EXISTS ELSE UPDATE?
...or the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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CSS content property: is it possible to insert HTML instead of Text?
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Unfortunately, this is not possible. Per the spec:
Generated content does not alter the document tree. In particular, it is not fed back to the document language processor (e.g., for reparsing).
In other words, for string values this me...
Is there an exponent operator in C#?
For example, does an operator exist to handle this?
8 Answers
8
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Is there Unicode glyph Symbol to represent “Search” [closed]
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There is U+1F50D LEFT-POINTING MAGNIFYING GLASS (????) and U+1F50E RIGHT-POINTING MAGNIFYING GLASS (????).
You should use (in HTML) 🔍 or 🔎
They are, however not supported by many fonts (fileformat.info onl...
How to search and replace text in a file?
...put already supports inplace editing. It redirects stdout to the file in this case:
#!/usr/bin/env python3
import fileinput
with fileinput.FileInput(filename, inplace=True, backup='.bak') as file:
for line in file:
print(line.replace(text_to_search, replacement_text), end='')
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Append an object to a list in R in amortized constant time, O(1)?
If I have some R list mylist , you can append an item obj to it like so:
17 Answers
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What is the Python equivalent of Matlab's tic and toc functions?
What is the Python equivalent of Matlab's tic and toc functions ?
12 Answers
12
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Regex (grep) for multi-line search needed [duplicate]
...select followed by the word customerName followed by the word from . This select statement can span many lines and can contain tabs and newlines.
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How to make a class property? [duplicate]
...n python I can add a method to a class with the @classmethod decorator. Is there a similar decorator to add a property to a class? I can better show what I'm talking about.
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vim “modifiable” is off
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:set ma
which is short for
:set modifiable
will make a buffer modifiable. And
:set noma
does the opposite.
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