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How do I replace multiple spaces with a single space in C#?
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24 Answers
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ActiveRecord: List columns in table from console
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215
This will list the column_names from a table
Model.column_names
e.g. User.column_names
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gitignore all files of extension in directory
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answered May 23 '12 at 2:27
ptyxptyx
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AppInventor2 .keystore 证书文件 - App版本升级的奥秘 · App Inventor 2 中文网
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ALTER TABLE to add a composite primary key
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ALTER TABLE provider ADD PRIMARY KEY(person,place,thing);
If a primary key already exists the...
Check if a key exists inside a json object
...mt: "10.00",
email: "sam@gmail.com",
merchant_id: "sam",
mobileNo: "9874563210",
orderID: "123456",
passkey: "1234"
}
you can find the details here
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Set transparent background using ImageMagick and commandline prompt
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I am using ImageMagick 6.6.9-7 on Ubuntu 12.04.
What worked for me was the following:
convert test.png -transparent white transparent.png
That changed all the white in the test.png to transparent.
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How to save an HTML5 Canvas as an image on a server?
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247
Here is an example of how to achieve what you need:
Draw something (taken from canvas tutoria...