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How do I remove a single file from the staging area (undo git add)?
Situation: I have a Git repository with files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ."
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Get string between two strings in a string
...e of string key : text I want to keep - end of my string";
int pFrom = St.IndexOf("key : ") + "key : ".Length;
int pTo = St.LastIndexOf(" - ");
String result = St.Substring(pFrom, pTo - pFrom);
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CRON job to run on the last day of the month
... if that's a problem, you'll need to find another way.
However, it's usually both substantially easier and correct to run the job as soon as possible on the first day of each month, with something like:
0 0 1 * * myjob.sh
and modify the script to process the previous month's data.
This remove...
Remove Last Comma from a string
...t here
var sentence="I got,. commas, here,";
var pattern=/,/g;
var currentIndex;
while (pattern.test(sentence)==true) {
currentIndex=pattern.lastIndex;
}
if(currentIndex==sentence.trim().length)
alert(sentence.substring(0,currentIndex-1));
else
alert(sentence);
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How to fix “Incorrect string value” errors?
... @Brian: If you tell it you're giving it cp1252, and you actually give it the UTF-8 for, say, café, it's going to misinterpret that as café. It won't crash, but it will misunderstand the high-bit characters.
– RichieHindle
Jul 22 '09 at 21:36
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belongs_to through associations
...n. You're better off caching the question_id on Choice and adding a unique index to the table (especially because validates_uniqueness_of is prone to race conditions).
If you're paranoid, add a custom validation to Choice that confirms that the answer's question_id matches, but it sounds like the e...
How to send a JSON object over Request with Android?
...www.example.com/objects", se, "application/json", responseHandler);
It's all asynchronous, works well with Android and safe to call from your UI thread. The responseHandler will run on the same thread you created it from (typically, your UI thread). It even has a built-in resonseHandler for JSON, ...
Prevent BODY from scrolling when a modal is opened
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Bootstrap's modal automatically adds the class modal-open to the body when a modal dialog is shown and removes it when the dialog is hidden. You can therefore add the following to your CSS:
body.modal-open {
overflow: hidden;
}
You could argue t...
getMinutes() 0-9 - How to display two digit numbers?
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(condition?true:false) in PHP you can omit the true statement (condition?:false) in JS you would then use (condition||false) Ternary operator en.wikipedia.org/wiki/Ternary_operation
– llange
Mar 16 '19 at 9:53
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Dynamically creating keys in a JavaScript associative array
...tion. You won't be able to refer to the array values in a for loop with an index (such as myarray[i]). Hope that's not too confusing.
– MK_Dev
Dec 9 '08 at 2:15
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