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Docker: adding a file from a parent directory
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Unfortunately, (for practical and security reasons I guess), if you want to add/copy local content, it must be located under the same root path than the Dockerfile.
From the documentation:
The <src> path must be ins...
How to select only the first rows for each unique value of a column
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This is neither allowed for MS-SQL.
– Mixxiphoid
Aug 2 '16 at 6:37
1
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Linux find file names with given string
...sh script with #!/bin/bash if [ -z $1 ]; then echo "Error: Specify pattern for search"; else /usr/bin/find . -type f -name "*$1*"; fi would let you just run F search-string as a perfect shortcut
– Ilia Rostovtsev
Jul 29 '15 at 21:13
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C# List of objects, how do I get the sum of a property
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Is this quicker than foreach out of interest?
– Coops
Feb 4 '13 at 14:08
4
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Cost of exception handlers in Python
...y cheap) if statement in Python code with a try/except block to improve performance.
3 Answers
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Convert DateTime to String PHP
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You can use the format method of the DateTime class:
$date = new DateTime('2000-01-01');
$result = $date->format('Y-m-d H:i:s');
If format fails for some reason, it will return FALSE. In some applications, it might make sense to handle...
Change x axes scale in matplotlib
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Try using matplotlib.pyplot.ticklabel_format:
import matplotlib.pyplot as plt
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plt.ticklabel_format(style='sci', axis='x', scilimits=(0,0))
This applies scientific notation (i.e. a x 10^b) to your x-axis tickmarks
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How can I conditionally require form inputs with AngularJS?
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For Angular2
<input type='email'
[(ngModel)]='contact.email'
[required]='!contact.phone' >
share
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improve...
SortedList, SortedDictionary and Dictionary
...rtedDictionary(TKey, TValue) has faster insertion and removal
operations for unsorted data: O(log n) as opposed to O(n) for
SortedList(TKey, TValue).
If the list is populated all at once from sorted data,
SortedList(TKey, TValue) is faster than SortedDictionary(TKey,
TValue).
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curl -GET and -X GET
...-F curl will use POST, -I will cause a HEAD and -T will make it a PUT.
If for whatever reason you're not happy with these default choices that curl does for you, you can override those request methods by specifying -X [WHATEVER]. This way you can for example send a DELETE by doing curl -X DELETE [U...