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How to remove leading and trailing white spaces from a given html string?
...ing HTML string. What would be sample code in JavaScript to remove leading and trailing white spaces from this string?
7 An...
What are DDL and DML?
I have heard the terms DDL and DML in reference to databases, but I don't understand what they are.
12 Answers
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Best practice? - Array/Dictionary as a Core Data Entity Attribute [closed]
... I have noticed that collection types are not available as attribute types and would like to know what the most efficient way is of storing array/dictionary type data as an attribute (e.g. the elements that make up an address like street, city, etc. does not require a separate entity and is more con...
How to select date from datetime column?
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The first one is very slow and ignores the indexes. It is better to have LIKE 'date%'
– kachar
Feb 22 '13 at 10:03
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How to do something to each file in a directory with a batch script
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Command line usage:
for /f %f in ('dir /b c:\') do echo %f
Batch file usage:
for /f %%f in ('dir /b c:\') do echo %%f
Update: if the directory contains files with space in the names, you need to change the delimiter the for...
How to remove RVM (Ruby Version Manager) from my system
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There's a simple command built-in that will pull it:
rvm implode
This will remove the rvm/ directory and all the rubies built within it. In order to remove the final trace of rvm, you need to remove the rvm gem, too:
gem uninstall rvm
If yo...
Team Build Error: The Path … is already mapped to workspace
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Use the command line utility TF - Team Foundation Version Control Tool (tf).
You can get a list of all workspaces by bringing up a Visual Studio Command Prompt then changing to your workspace folder and issuing the following commands:
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source command not found in sh shell
...hat uses sh shell. I get an error in the line that uses the source command. It seems source is not included in my sh shell.
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SVN undo delete before commit
...vn revert deletedDirectory
Here's the documentation for the svn revert command.
EDIT
If deletedDirectory was deleted using rmdir and not svn rm, you'll need to do
svn update deletedDirectory
instead.
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Count occurrences of a char in a string using Bash
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I would use the following awk command:
string="text,text,text,text"
char=","
awk -F"${char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char and print the number of resulting fields minus 1.
If your shell does not support the <...