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How can I manually generate a .pyc file from a .py file
...part of the python standard library, so you don't need to install anything extra to use it. This works exactly the same way for python2 and python3.
python -m compileall .
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How do I load the contents of a text file into a javascript variable?
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If you only want a constant string from the text file, you could include it as JavaScript:
// This becomes the content of your foo.txt file
let text = `
My test text goes here!
`;
<script src="foo.txt"></script>
<script>
c...
How to check whether a given string is valid JSON in Java
How do I validate a JSON string in Java? Or could I parse it using regular expressions?
19 Answers
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...I agree with @NickBrunt . It is better if the attacker reads a random hash string that may fit only with this particular app rather than the original password that may be used in several places.
– Aebsubis
May 28 '14 at 15:16
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
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Use an Iterator and call remove():
Iterator<String> iter = myArrayList.iterator();
while (iter.hasNext()) {
String str = iter.next();
if (someCondition)
iter.remove();
}
s...
Are Javascript arrays sparse?
...ly hash tables internally, so you can use not only large integers but also strings, floats, or other objects. All keys get converted to strings via toString() before being added to the hash. You can confirm this with some test code:
<script>
var array = [];
array[0] = "zero";
array[new ...
PostgreSQL: How to change PostgreSQL user password?
...ere's a difference, and in a DML query you have to use ' when dealing with strings, but is there a special reason to use both of them here?
– Boyan
Mar 23 '16 at 11:17
8
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How to change the output color of echo in Linux
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It may be more convenient to insert tput's output directly into your echo strings using command substitution:
echo "$(tput setaf 1)Red text $(tput setab 7)and white background$(tput sgr 0)"
Example
The above command produces this on Ubuntu:
Foreground & background colour commands
tp...
MySQL “NOT IN” query
... it is possible that the code responsible for EXISTS makes some kind of an extra check which takes extra time.
[…]
MySQL can optimize all three methods to do a sort of NESTED LOOPS ANTI JOIN.
[…]
However, these three methods generate three different plans which are executed by three di...
Is there an expression for an infinite generator?
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knowing the syntax of iter (here with extra sentinel) and the syntax of lambda (here without any passed parameters, just return 0), the only place to hate is that enigmatic g1.
– Sławomir Lenart
Mar 11 '19 at 17:56
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