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How to use find command to find all files with extensions from list?
I need to find all image files from directory (gif, png, jpg, jpeg).
9 Answers
9
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Convert bytes to a string
... very common encoding, but you
# need to use the encoding your data is actually in.
>>> b"abcde".decode("utf-8")
'abcde'
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In-memory size of a Python structure
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Yep. The "4 higher" actually mostly look like "rounding up to a multiple of 8" which I believe is correct for the way malloc behaves here. No idea why decimal gets so distorted (with pympler on 2.6, too).
– Alex Martelli
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Regular expression to allow spaces between words
I want a regular expression that prevents symbols and only allows letters and numbers. The regex below works great, but it doesn't allow for spaces between words.
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How to print a number with commas as thousands separators in JavaScript
... console.log(`${failures} test(s) failed`);
} else {
console.log("All tests passed");
}
.as-console-wrapper {
max-height: 100% !important;
}
The regex uses 2 lookahead assertions:
a positive one to look for any point in the string that has a multiple of 3 digits in a row...
Display number with leading zeros
...r(1).zfill(2))
print(str(10).zfill(2))
print(str(100).zfill(2))
prints:
01
10
100
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Display / print all rows of a tibble (tbl_df)
...ame manipulation package in R. It prevents long table outputs when accidentally calling the data frame.
7 Answers
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How to make type=“number” to positive numbers only
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QuentinQuentin
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JavaScript - Replace all commas in a string [duplicate]
...a.k.a. "global search"). The algorithm is simple: regular expression finds ALL matches (here commas) in the given string. More information about regular expressions in JavaScript you can find in MDN.
– VisioN
Nov 5 '15 at 8:37
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Is it a good practice to use an empty URL for a HTML form's action attribute? (action=“”)
...for compatibility with legacy content. [RFC3986]
This definitely works in all current browsers, but may not work as expected in some older browsers ("browsers do weird things with an empty action="" attribute"), which is why the spec strongly discourages authors from leaving it empty:
The action a...