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What does ~~ (“double tilde”) do in Javascript?
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Technically you have the wrong order. The second ~ does what you described the first ~ does and vice versa. The ~ operator is a unary operators and is interpereted from right to left ~~X is like ~(~X) not like (~~)X (which would be a syntax error)
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What is the difference between old style and new style classes in Python?
...mplemented before for compatibility concerns, like the method
resolution order in case of multiple inheritance.
Python 3 only has new-style classes.
No matter if you subclass from object or not, classes are new-style
in Python 3.
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How do you remove duplicates from a list whilst preserving order?
... a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
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Is there a way to make text unselectable on an HTML page? [duplicate]
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According to this Answer, the order of those two webkit settings may be critical, where the -webkit-user-select: should come before the -webkit-touch-callout:. I have not verified this.
– Basil Bourque
Nov 15 '14 at ...
Unioning two tables with different number of columns
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I came here and followed above answer. But mismatch in the Order of data type caused an error. The below description from another answer will come handy.
Are the results above the same as the sequence of columns in your table? because oracle is strict in column orders. this example ...
Database development mistakes made by application developers [closed]
...Specifically, using a natural key will give you the ability to control the order in which data in your table is written to the disk. If you know how your table will be queried, you can index it so concurrently-accessed rows will end-up in the same page. Furthermore, you can enforce data integrity us...
SQL - using alias in Group By
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SQL is implemented as if a query was executed in the following order:
FROM clause
WHERE clause
GROUP BY clause
HAVING clause
SELECT clause
ORDER BY clause
For most relational database systems, this order explains which names (columns or aliases) are valid because they must have been ...
How to print register values in GDB?
...uck with control registers so far: OSDev 2012 http://f.osdev.org/viewtopic.php?f=1&t=25968 || 2005 feature request https://www.sourceware.org/ml/gdb/2005-03/msg00158.html || alt.lang.asm 2013 https://groups.google.com/forum/#!topic/alt.lang.asm/JC7YS3Wu31I
ARM floating point registers
See: htt...
How can I get the sha1 hash of a string in node.js?
...hing the UTF-8 representation of the string. Other languages (like Python, PHP or PERL...) are hashing the byte string.
We can add binary argument to use the byte string.
const crypto = require("crypto");
function sha1(data) {
return crypto.createHash("sha1").update(data, "binary").digest("hex...
How do I convert this list of dictionaries to a csv file?
... dict_writer.writerows(toCSV)
EDIT: My prior solution doesn't handle the order. As noted by Wilduck, DictWriter is more appropriate here.
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