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Will using 'var' affect performance?
... the choice; I'll take that extra bit of "noise" to ensure I'm writing and reading exactly what I think I am at code/debug time. * shrug *
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how to use sed, awk, or gawk to print only what is matched?
...if /.*abc([0-9]+)xyz.*/'
This runs Perl, the -n option instructs Perl to read in one line at a time from STDIN and execute the code. The -e option specifies the instruction to run.
The instruction runs a regexp on the line read, and if it matches prints out the contents of the first set of bracks...
Can you change a path without reloading the controller in AngularJS?
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@inolasco: works if you read your $routeParams in $routeChangeSuccess handler. More often than not, this is probably what you want anyway. reading just in the controller would only get you the values for the URL that was originally loaded.
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Shell command to sum integers, one per line?
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I love this answer for its ease of reading and flexibility. I needed the average size of files smaller than 10Mb in a collection of directories and modified it to this: find . -name '*.epub' -exec stat -c %s '{}' \; | python -c "import sys; nums = [int(n) for ...
Is there a working C++ refactoring tool? [closed]
...ifficult work of writing their own parser and semantic analyzer.
Google already made a large-scale refactoring tool using clang.
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
... - finding something in your telephone book. Think binary search.
O(n) - reading a book, where n is the number of pages. It is the minimum amount of time it takes to read a book.
O(nlogn) - cant immediately think of something one might do everyday that is nlogn...unless you sort cards by doing me...
When should I use “this” in a class?
...cy, even just internally within a single codebase, goes a long way towards readability and maintainability.
– William Brendel
Feb 26 '16 at 5:06
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Remove data.frame row names when using xtable
OK, I admit this one is a bit uptight (read: "stupid"), and I assume it's quite easy too. I'm writing a report and I want to use xtable package for LaTeX table generation (note that memisc package does the job, but say I want to do this solely with xtable ).
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Xcode 6 Storyboard the wrong size?
...easy to miss text button at the bottom of Interface Builder that initially reads "wAny hAny".
Click the button, and choose Compact Width, Regular Height. This resize your views and cover all iPhone portrait orientations.
Apple's docs here: https://developer.apple.com/library/ios/recipes/xcode_help...
When do you use the Bridge Pattern? How is it different from Adapter pattern?
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John puts it nicely in a blog post. Found it to be a good read for high level overview.
– Vaibhav Bhalla
Jan 17 '19 at 9:17
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