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When do we need curly braces around shell variables?
...%.*} (remove extension)
expanding positional parameters beyond 9: "$8 $9 ${10} ${11}"
Doing this everywhere, instead of just in potentially ambiguous cases, can be considered good programming practice. This is both for consistency and to avoid surprises like $foo_$bar.jpg, where it's not visually ...
How to prevent scrollbar from repositioning web page?
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19 Answers
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Access-Control-Allow-Origin wildcard subdomains, ports and protocols
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Python function attributes - uses and abuses [closed]
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154
I typically use function attributes as storage for annotations. Suppose I want to write, in th...
How to Set Focus on Input Field using JQuery
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138
Try this, to set the focus to the first input field:
$(this).parent().siblings('div.bottom')....
String replacement in java, similar to a velocity template
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143
Use StringSubstitutor from Apache Commons Text.
https://commons.apache.org/proper/commons-tex...
What is Hindley-Milner?
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Hindley-Milner is a type system discovered independently by Roger Hindley (who was looking at ...
Why C# fails to compare two object types with each other but VB doesn't?
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In C#, the == operator (when applied to reference type expressions) performs a reference equal...
How to check an Android device is HDPI screen or MDPI screen?
...rces().getDisplayMetrics().density;
// return 0.75 if it's LDPI
// return 1.0 if it's MDPI
// return 1.5 if it's HDPI
// return 2.0 if it's XHDPI
// return 3.0 if it's XXHDPI
// return 4.0 if it's XXXHDPI
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