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Escape a string for a sed replace pattern
...s a bad idea. Sed needs many characters to be escaped to get their special meaning. For example, if you escape a digit in the replacement string, it will turn in to a backreference.
As Ben Blank said, there are only three characters that need to be escaped in the replacement string (escapes themsel...
Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
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You're trying to call the isEmpty() method on a null reference (as List test = null;
). This will surely throw a NullPointerException. You should do if(test!=null) instead (Checking for null first).
The method isEmpty() returns true, if an ArrayList object co...
How do I install a NuGet package .nupkg file locally?
I have some .nupkg files from a C# book. How can I install them?
8 Answers
8
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How to compare files from two different branches?
...tor of both <commit>. git diff A...B is equivalent to git diff $(git-merge-base A B) B.
In other words, this will give a diff of changes in master since it diverged from mybranch (but without new changes since then in mybranch).
In all cases, the -- separator before the file name indicates t...
SQL RANK() versus ROW_NUMBER()
...fused about the differences between these. Running the following SQL gets me two idential result sets. Can someone please explain the differences?
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Search text in stored procedure in SQL Server
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doen't give schema name :(
– Imad
Aug 12 '15 at 4:14
4
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How to fallback to local stylesheet (not script) if CDN fails
... it in plain Javascript.
<script type="text/javascript">
$.each(document.styleSheets, function(i,sheet){
if(sheet.href=='http://code.jquery.com/mobile/1.0b3/jquery.mobile-1.0b3.min.css') {
var rules = sheet.rules ? sheet.rules : sheet.cssRules;
if (rules.length == 0) {
$('<...
How do I get the full path to a Perl script that is executing?
I have Perl script and need to determine the full path and filename of the script during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't ...
How to properly create composite primary keys - MYSQL
...tense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 .
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Removing multiple keys from a dictionary safely
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