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How to delete selected text in the vi editor
...To select ( actually copy them to the clipboard ) you type: 10yy
It is a bit hard to grasp, but very handy to learn when using those remote terminals
Be aware of the learning curves for some editors:
(source: calver at unix.rulez.org)
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How to comment out a block of Python code in Vim
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I have modified a bit : Ctrl + k for comment "vnoremap <silent> <C-k> :s#^#\##<cr>:noh<cr>" > Ctrl + u for uncomment : "vnoremap <silent> <C-u> :s#^\###<cr>:noh<cr>"
– P...
How to empty a Heroku database
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if you just paste skip the bit after (and including) the -- heroku will tell you what to type..
– baash05
Feb 1 '12 at 22:48
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Is log(n!) = Θ(n·log(n))?
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this explanation is similar to accepted answer, but has a bit more details: mcs.sdsmt.edu/ecorwin/cs372/handouts/theta_n_factorial.htm
– gayavat
Oct 2 '15 at 8:15
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How to restore the permissions of files and directories within git if they have been modified?
...m the git config man page:
core.fileMode
If false, the executable bit differences between the index and the working copy are ignored; useful on broken filesystems like FAT. See git-update-index(1).
The default is true, except git-clone(1) or git-init(1) will probe and set core.fileMode...
Fragments onResume from back stack
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I've changed the suggested solution a little bit. Works better for me like that:
private OnBackStackChangedListener getListener() {
OnBackStackChangedListener result = new OnBackStackChangedListener() {
public void onBackStackChanged() {
Fragmen...
Regular expression to match standard 10 digit phone number
...le using above mentioned solutions on jsfiddle.
I have modified the code a bit as per my clients requirement. Hope this also helps someone.
/^\s*(?:\+?(\d{1,3}))?[- (]*(\d{3})[- )]*(\d{3})[- ]*(\d{4})(?: *[x/#]{1}(\d+))?\s*$/
See Example Here
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“Prevent saving changes that require the table to be re-created” negative effects
...effects / possible drawbacks of doing this? and If so, is the table copy a 100% exact replica of the source table?. Do you have any information regarding those questions?
– tfrascaroli
Jun 14 '17 at 9:33
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JavaScript: How do I print a message to the error console?
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The extra bit about adding CSS is pretty fun. +1!
– sudo make install
Jan 24 '16 at 0:39
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Count the number of occurrences of a string in a VARCHAR field?
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A little bit simpler and more effective variation of @yannis solution:
SELECT
title,
description,
CHAR_LENGTH(description) - CHAR_LENGTH( REPLACE ( description, 'value', '1234') )
AS `count`
FROM <tab...