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Difference between HEAD and master
...hen push to this.
Here is a visual example:
On your own repository you can check where the HEAD is pointing to by running this:
$ git symbolic-ref HEAD
refs/heads/master
However, finding out where the remotes/origin/HEAD is pointing to is more tricky because it is on the remote machine.
Ther...
What is the difference between Caching and Memoization?
I would like to know what the actual difference between caching and memoization is.
As I see it, both involve avoiding repeated function calls to get data by storing it .
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How can I extract a good quality JPEG image from a video file with ffmpeg?
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Use -qscale:v to control quality
Use -qscale:v (or the alias -q:v) as an output option.
Normal range for JPEG is 2-31 with 31 being the worst quality.
The scale is linear with double the qscale being roughly half the bitrate.
Recom...
How do I use vi keys in ipython under *nix?
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In case someone's wandering in here recently, IPython 5.0 switched from readline to prompt_toolkit, so an updated answer to this question is to pass an option:
$ ipython --TerminalInteractiveShell.editing_mode=vi
... or to se...
What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p
...g tree file and asks you if you want to stage the change of each hunk. You can select one of the following options and type return:
y - stage this hunk
n - do not stage this hunk
q - quit; do not stage this hunk nor any of the remaining ones
a - stage thi...
What are the differences between the BLOB and TEXT datatypes in MySQL?
...we use varchar to store a very long text instead of using blob or text ? because in memory calculating, varchar is really simple, for example create table website( website_name varchar(30) ) and then we fill the website_name "stackoverflow" so the memory needed is 13byte
– ne...
[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue
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Just adding my two cents to this issue.
I found that the cause of this error for me was that the Views folders web.config was referencing System.Web.WebPages.Razor, Version=2.0.0.0 when everything else was using 3.0.0.0
Seems the nuget-package upgrade didn't account for this fol...
Prevent wrapping of span or div
...uptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</span>
<span class="slide">Even more content!</span>
</div>
Note that you can omit .slideConta...
How to get VM arguments from inside of Java application?
I need to check if some option that can be passed to JVM is explicitly set or has its default value.
5 Answers
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Effect of a Bitwise Operator on a Boolean in Java
...s are supposed to travel variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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