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Format numbers to strings in Python
...ntro book and the slides for the Intro+Intermediate Python courses I offer from time-to-time. :-)
Aug 2018 UPDATE: Of course, now that we have the f-string feature in 3.6, we need the equivalent examples of that, yes another alternative:
>>> name, age = 'John', 35
>>> f'Name: {na...
Fastest way to convert string to integer in PHP
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integer excract from any string
$in = 'tel.123-12-33';
preg_match_all('!\d+!', $in, $matches);
$out = (int)implode('', $matches[0]);
//$out ='1231233';
share
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Performance of FOR vs FOREACH in PHP
...luate at parse time whether anything modifies the array. This prevents it from evaluating the count once.
But even once you fix it with "$c=count($x); for ($i=0; $i<$c; $i++) the $i<$c is a bunch of Zend opcodes at best, as is the $i++. In the course of 100000 iterations, this can matter. F...
ReSharper “Cannot resolve symbol” even when project builds
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This worked for me :) other way to do it by Clear Cache from Visual studio itself ty
– ThomasBecker
Apr 17 '15 at 12:24
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Python: Why is functools.partial necessary?
...entant of ever having accepted it into Python whereas planned to remove it from Python 3, as one of "Python's glitches".
I fully supported him in that. (I love lambda in Scheme... while its limitations in Python, and the weird way it just doesn't fit in with the rest of the language, make my skin c...
What is the exact meaning of Git Bash?
...OW64\cmd.exe /c ""C:\Prog\Git\1.7.1\bin\sh.exe" --login -i"
This differs from git-cmd.bat, which provides git commands in a plain DOS command prompt.
A tool like GitHub for Windows (G4W) provides different shell for git (including a PowerShell one)
Update April 2015:
Note: the git bash in msy...
How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
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Edit: Note that you can number the plots however you want (here, starting from 0) but if you don't provide figure with a number at all when you create a new one, the automatic numbering will start at 1 ("Matlab Style" according to the docs).
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Batch renaming files with Bash
... didn't work for me, would be glad to get your help.... The suffix of the FROM file is appended to the TO file: $find . -type d | sed -n 's/(.*)\/(.*)anysoftkeyboard(.*)/mv "\1\/\2anysoftkeyboard\3" "\1\/\2effectedkeyboard\3"/p'|sh >>>>>>>OUTPUT>>>> mv: rename ./bas...
ReactJS state vs prop
...allbacks down to the children that need to modify your data, and call them from the child component.
Modifying this.props or this.state directly is not a good idea, because React will not be able to pick up on the changes. That's because React does a shallow comparison of your post prop to determin...
Redefine tab as 4 spaces
.... In practice, you probably want your tab character width to be different from the width of your indents, in order to reduce the chance of tab characters masquerading as proper indents. (list + expandtab can help here too) Also, 8-char-wide tabs is "the standard" -- your terminal, Python, and many ...