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Check if passed argument is file or directory in Bash
I'm trying to write an em>x m>tremely simple script in Ubuntu which would allow me to pass it either a filename or a directory, and be able to do something specific when it's a file, and something else when it's a directory. The problem I'm having is when the directory name, or probably files too, has s...
JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update em>x m>isting ones.
15 Answers
15
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Convert hem>x m> string to int in Python
How do I convert a hem>x m> string to an int in Python?
12 Answers
12
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How do I sort an observable collection?
...g an observable and returning the same object sorted can be done using an em>x m>tension method. For larger collections watch out for the number of collection changed notifications.
I have updated my code to improve performance (thanks to nawfal) and to handle duplicates which no other answers here do at...
How can I implement prepend and append with regular JavaScript?
...ild)
Inserts the node newChild as a child of parentNode before the
em>x m>isting child node refChild. (Returns newChild.)
If refChild is null, newChild is added at the end of the list of
children. Equivalently, and more readably, use
parentNode.appendChild(newChild).
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How many parameters are too many? [closed]
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Nem>x m>t
162
votes
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Cartesian product of multiple arrays in JavaScript
...overly complicated, most of them take 20 lines of code or even more.
This em>x m>ample uses just two lines of vanilla JavaScript, no lodash, underscore or other libraries:
let f = (a, b) => [].concat(...a.map(a => b.map(b => [].concat(a, b))));
let cartesian = (a, b, ...c) => b ? cartesian(f(...
Is there a way to 'uniq' by column?
...field 1
Test result:
overflow@domain2.com,2009-11-27 00:58:29.793000000,m>x m>m>x m>3.net,255.255.255.0
stack2@domain.com,2009-11-27 01:05:47.893000000,m>x m>m>x m>2.net,127.0.0.1
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typeof for RegEm>x m>p
Is there anyway to detect if a JavaScript object is a regem>x m>?
8 Answers
8
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How do I resize an image using PIL and maintain its aspect ratio?
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Define a mam>x m>imum size.
Then, compute a resize ratio by taking min(mam>x m>width/width, mam>x m>height/height).
The proper size is oldsize*ratio.
There is of course also a library method to do this: the method Image.thumbnail.
Below is an (edite...