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How can I check the extension of a file?
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Assuming m is a string, you can use endswith:
if m.endswith('.mp3'):
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elif m.endswith('.flac'):
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To be case-insensitive, and to eliminate a potentially large else-if chain:
m.lower().endswith(('.png', '.jpg', '.jpeg'))
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How can I represent an infinite number in Python?
...NEVER use it unless absolutely necessary):
None < any integer < any string
Thus the check i < '' holds True for any integer i.
It has been reasonably deprecated in python3. Now such comparisons end up with
TypeError: unorderable types: str() < int()
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How do I get the full url of the page I am on in C#
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I usually use Request.Url.ToString() to get the full url (including querystring), no concatenation required.
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JSON encode MySQL results
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This code erroneously encodes all numeric values as strings. For example, a mySQL numeric field called score would have a JSON value of "12" instead of 12 (notice the quotes).
– Theo
Sep 25 '11 at 18:48
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How to get only the last part of a path in Python?
...g., '\\\\?\\D:\\A\\B\\C\\' and '\\\\?\\UNC\\svr\\B\\C\\' (returns an empty string) This solution works for all cases.
– omasoud
Feb 7 at 17:54
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How do I get the day of week given a date?
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If you have dates as a string, it might be easier to do it using pandas' Timestamp
import pandas as pd
df = pd.Timestamp("2019-04-12")
print(df.dayofweek, df.weekday_name)
Output:
4 Friday
How do I convert a datetime to date?
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OP wanted to get datetime.date object, and not string, which strftime would return (ref: docs.python.org/3/library/datetime.html#datetime.date.strftime).
– Grzegorz Skibinski
Sep 10 '19 at 9:15
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How do I get the time of day in javascript/Node.js?
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If you only want the time string you can use this expression (with a simple RegEx):
new Date().toISOString().match(/(\d{2}:){2}\d{2}/)[0]
// "23:00:59"
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In Vim, is there a way to paste text in the search line?
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The 0 register contains the last-yanked string.
– Evgeni Sergeev
Nov 19 '17 at 8:49
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How to serialize an Object into a list of URL query parameters?
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One line with no dependencies:
new URLSearchParams(obj).toString();
// OUT: param1=something&param2=somethingelse&param3=another&param4=yetanother
Use it with the URL builtin like so:
let obj = { param1: 'something', param2: 'somethingelse', param3: 'another' }
obj['par...