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Should I use s and s inside my s?
The title pretty much explains it.
8 Answers
8
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Vim clear last search highlighting
...noh
Or turn off highlighting completely:
set nohlsearch
Or, to toggle it:
set hlsearch!
nnoremap <F3> :set hlsearch!<CR>
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How to deep watch an array in angularjs?
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edited May 29 '18 at 9:55
Ivar
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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...rmation:
for blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower.
for other browsers while loop is the fastest method, since those browsers don't have internal optimizations for slice and concat.
This remains true in Jul 2016.
Below are simple sc...
Why am I getting error for apple-touch-icon-precomposed.png
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I guess apple devices make those requests if the device owner adds the site to it. This is the equivalent of the favicon. To resolve, add 2 100×100 png files, save it as apple-touch-icon-precomposed.png and apple-touch-icon.png and upload it to the root directory of the server. After that, the e...
Finding duplicate values in a SQL table
It's easy to find duplicates with one field:
33 Answers
33
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How to randomize (or permute) a dataframe rowwise and columnwise?
... replace=FALSE (the default) to sample(...) ensures that sampling is done without replacement which accomplishes a row wise shuffle.
Shuffle column-wise:
> df3 <- df1[,sample(ncol(df1))]
> df3
c a b
1 0 1 1
2 0 1 0
3 0 0 1
4 0 0 0
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Tick symbol in HTML/XHTML
We need to display a tick symbol (✓ or ✔) within an internal web app and would ideally like to avoid using an image.
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How to use JUnit to test asynchronous processes
How do you test methods that fire asynchronous processes with JUnit?
17 Answers
17
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PHP Array to CSV
I'm trying to convert an array of products into a CSV file, but it doesn't seem to be going to plan. The CSV file is one long line, here is my code:
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