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How to get first 5 characters from string [duplicate]
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Thanks, this is what I needed it for: if(substr($myURL, 0, 4) == "www.") $myURL = preg_replace('/www./', '', $myURL, 1);
– shanehoban
Jun 19 '14 at 9:50
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How do you give iframe 100% height [duplicate]
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You can do it with CSS:
<iframe style="position: absolute; height: 100%; border: none"></iframe>
Be aware that this will by default place it in the upper-left corner of the page, but I guess that is what you want to achieve. You can positi...
How do I list one filename per output line in Linux?
...1. GNU coreutils (installed on standard Linux systems) and Solaris do; but if in doubt, use man ls or ls --help or check the documentation. E.g.:
$ man ls
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-1 list one file per line. Avoid '\n' with -q or -b
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Define make variable at rule execution time
...$(TMP) cf $@ .
rm -rf $(TMP)
The eval function evaluates a string as if it had been typed into the makefile manually. In this case, it sets the TMP variable to the result of the shell function call.
edit (in response to comments):
To create a unique variable, you could do the following:
out...
typecast string to integer - Postgres
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Wild guess: If your value is an empty string, you can use NULLIF to replace it for a NULL:
SELECT
NULLIF(your_value, '')::int
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Private vs Public in Cache-Control
Can you please describe an example indicating difference between Public and Private Cache-Control in asp.net applications hosted in IIS.
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How often does python flush to a file?
...tem's default buffering unless you configure it do otherwise. You can specify a buffer size, unbuffered, or line buffered.
For example, the open function takes a buffer size argument.
http://docs.python.org/library/functions.html#open
"The optional buffering argument specifies the file’s desir...
How do I get rid of “[some event] never used” compiler warnings in Visual Studio?
...picious...
There's also an interesting article about this warning and specifically how it applies to interfaces; there's a good suggestion on how to deal with "unused" events. The important parts are:
The right answer is to be explicit about what you expect from the event, which in this case, i...
sed command with -i option failing on Mac, but works on Linux
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If you use the -i option you need to provide an extension for your backups.
If you have:
File1.txt
File2.cfg
The command (note the lack of space between -i and '' and the -e to make it work on new versions of Mac and on G...
What's an Aggregate Root?
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Hypothetically, if the client code needed the LineItem for some other purpose, would that form a seperate aggregate (assuming there would be other objects involved not related to the Order object)?
– Ahmad
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