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How to check if a string starts with a specified string? [duplicate]
... the substr function to return a part of a string.
substr( $string_n, 0, 4 ) === "http"
If you're trying to make sure it's not another protocol. I'd use http:// instead, since https would also match, and other things such as http-protocol.com.
substr( $string_n, 0, 7 ) === "http://"
And in ge...
Rails raw SQL example
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446
You can do this:
sql = "Select * from ... your sql query here"
records_array = ActiveRecord::...
Does Python have a ternary conditional operator?
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7254
Yes, it was added in version 2.5. The expression syntax is:
a if condition else b
First conditi...
How can I expand and collapse a using javascript?
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184
Okay, so you've got two options here :
Use jQuery UI's accordion - its nice, easy and fast. Se...
Aborting a shell script if any command returns a non-zero value?
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answered May 4 '09 at 19:00
Ville LaurikariVille Laurikari
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What are the rules about using an underscore in a C++ identifier?
...d template specializations, though.)
From the 2003 C++ Standard:
17.4.3.1.2 Global names [lib.global.names]
Certain sets of names and function signatures are always reserved to the implementation:
Each name that contains a double underscore (__) or begins with an underscore follo...
How to get the path of the batch script in Windows?
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jurl
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answered Sep 30 '10 at 3:50
Dean HardingDean Har...
How do I run Asynchronous callbacks in Playground
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Rob
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answered Jun 5 '14 at 17:17
Rick BallardRick ...
How to determine whether a Pandas Column contains a particular value
...s working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the missing id df[df['id'] == 43] there are, obviously, no entries in it. How to I determine if a column in a Pandas d...
How do you make Vim unhighlight what you searched for? [duplicate]
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