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git: Your branch is ahead by X commits
...out understanding the situation, you are potentially producing trouble for times ahead (rewritten history!). If you understand the situation, this will not be the fix for it. Please think before you type when using git, and don't ever mindlessly rewrite history!
– cmaster - rei...
How can I swap positions of two open files (in splits) in vim?
...
I wish I could upvote you ten times! I did have to use noremap in the mappings to make it work. Not sure why, but hopefully that helps anyone who finds this later. :D
– wes
Feb 5 '11 at 23:28
...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... as a key. There may be many reads in-flight, and we want to store a start timestamp to each. How? We could construct a unique identifier for each read, and use that as the key. But because kernel threads can only be executing one syscall at a time, we can use the thread ID as the unique identifier,...
Get time difference between two dates in seconds
.../ Do your operations
var endDate = new Date();
var seconds = (endDate.getTime() - startDate.getTime()) / 1000;
Or even simpler (endDate - startDate) / 1000 as pointed out in the comments unless you're using typescript.
The explanation
You need to call the getTime() method for the Date objects, a...
403 Forbidden vs 401 Unauthorized HTTP responses
...ll not work, unless credentials changed, which is very unlikely in a short time span.
Special case: Can be used instead of 404 to avoid revealing presence or non-presence of resource (credits @gingerCodeNinja)
NOT FOUND: Status code (404) indicating that the requested resource is not available. Use...
Format a Go string without printing?
...s less readable and less efficient (especially if you have to do this many times).
For this the standard library provides the packages text/template and html/template. These packages implement data-driven templates for generating textual output. html/template is for generating HTML output safe agai...
Best way to represent a fraction in Java?
...h the Fraction and BigFraction in Commons Math?
– Mortimer
May 23 '11 at 12:59
@Mortimer: not sure, i've never looked ...
Oracle Differences between NVL and Coalesce
... | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 2 | 52 | 2 (0)| 00:00:01 |
| 1 | CONCATENATION ...
How do I work around JavaScript's parseInt octal behavior?
... really want, is just an option if you don't like adding the ",10" all the time to the parseInt() call. It has the disadvantage of being a nonstandard function: more convenient for you if you use it a lot, but perhaps more confusing for others.
...
Parallelize Bash script with maximum number of processes
...max-procs=max-procs
-P max-procs
Run up to max-procs processes at a time; the default is 1.
If max-procs is 0, xargs will run as many processes as possible at a
time. Use the -n option with -P; otherwise chances are that only one
exec will be done.
...