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git: How to diff changed files versus previous versions after a pull?
...een the last version of a file and the new one. Say I want to know what someone else committed to a particular file.
3 Ans...
Insert a commit before the root commit in Git?
... updating the index and working copy repeatedly, for no good reason. But some may find this easier to understand:
git checkout --orphan newroot
git rm -rf .
git clean -fd
git commit --allow-empty -m 'root commit'
Note that on very old versions of Git that lack the --orphan switch to checkout, you...
PHP: How to remove all non printable characters in a string?
...127-255 and removes it.
8 bit extended ASCII?
You fell into a Hot Tub Time Machine, and you're back in the eighties.
If you've got some form of 8 bit ASCII, then you might want to keep the chars in range 128-255. An easy adjustment - just look for 0-31 and 127
$string = preg_replace('/[\x00-\x1...
GitHub: Reopening a merged pull request
...
The answer seems to be: You can't.
Once a pull request is merged and closed, it is locked forever and cannot be reopened. If your pull request is merged, closed, then your changes are pulled out (via force pushing backwards to before the merge), you will need to add commits to the b...
Replace a value if null or undefined in JavaScript
I have a requirement to apply the ?? C# operator to JavaScript and I don't know how.
Consider this in C#:
5 Answers
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How can I hash a password in Java?
...
You can actually use a facility built in to the Java runtime to do this. The SunJCE in Java 6 supports PBKDF2, which is a good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65...
C# switch statement limitations - why?
When writing a switch statement, there appears to be two limitations on what you can switch on in case statements.
17 Answe...
Use a URL to link to a Google map with a marker on it
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In May 2017 Google launched the official Google Maps URLs documentation. The Google Maps URLs introduces universal cross-platform syntax that you can use in your applications.
Have a look at the following document:
https://developers.google.com/maps/documentation/urls/guide
You can u...
Loop through files in a directory using PowerShell
...
Give this a try:
Get-ChildItem "C:\Users\gerhardl\Documents\My Received Files" -Filter *.log |
Foreach-Object {
$content = Get-Content $_.FullName
#filter and save content to the original file
$content | Where-Object {$_ -match 'step[49]'} | Set-Content $_.FullName...
How do you specify the date format used when JAXB marshals xsd:dateTime?
...hen JAXB marshals a date object ( XMLGregorianCalendar ) into an xsd:dateTime element. How can you specify the format of the resulting XML?
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