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Convert an image to grayscale in HTML/CSS
...ry ones too if you feel like it, apply that class to any image you want to convert to greyscale (works in Firefox >3.5, IE8).
edit: Here's a nice blog post which describes using the new CSS3 filter property in SalmanPK's answer in concert with the SVG approach described here. Using that approa...
cannot convert data (type interface {}) to type string: need type assertion
... is an interface type, []i is not interface type. As a result, in order to convert []i to its value type, we have to do it individually:
// var items []i
for _, item := range items {
value, ok := item.(T)
dosomethingWith(value)
}
Performance
As for performance, it can be slower than dire...
How do I get the current time zone of MySQL?
...knowing. Moral: Always store dates/times in GMT (which doesn't do DST) and convert to the desired timezone as/when necessary.
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What is “2's Complement”?
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Awesome .Added extra parts of converting bits to negative integer.
– Suraj Jain
Aug 22 '16 at 22:35
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PostgreSQL return result set as JSON array?
...ion describes how to generate a JSON array of objects, with each row being converted to a single object. The result looks like this:
[{"a":1,"b":"value1"},{"a":2,"b":"value2"},{"a":3,"b":"value3"}]
9.3 and up
The json_agg function produces this result out of the box. It automatically figures out...
Is if(items != null) superfluous before foreach(T item in items)?
...gate versus a standard foreach. Particularly for a List which I think gets converted to a for loop.
– kjbartel
Apr 26 '19 at 3:58
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How do I convert an array object to a string in PowerShell?
How can I convert an array object to string?
6 Answers
6
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Base64 encoding in SQL Server 2005 T-SQL
...ted table in the first (encoding) query because I couldn't find any way to convert the original value ("TestData") to its hex string representation ("5465737444617461") to include as the argument to xs:hexBinary() in the XQuery statement.
I hope this helps someone!
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How to convert JSON to a Ruby hash
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Assuming you have a JSON hash hanging around somewhere, to automatically convert it into something like WarHog's version, wrap your JSON hash contents in %q{hsh} tags.
This seems to automatically add all the necessary escaped text like in WarHog's answer.
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How to convert a Collection to List?
I am using TreeBidiMap from the Apache Collections library. I want to sort this on the values which are doubles .
10 A...