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What's the difference between equal?, eql?, ===, and ==?
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As I understand from your answer, the strictness is: equal? < eql? < == < ===. Normally, you use ==. For some loose purposes, you use ===. For strict situation, you use eql?, and for complete identity, you use equal?.
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How to change variables value while debugging with LLDB in Xcode?
...t; ( --dynamic-value <boolean> )
Upcast the value resulting from the expression to its dynamic type
if available.
-f <format> ( --format <format> )
Specify a format to be used for display.
-o ( --object-description )
Print the object descr...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...ts you're seeing (and supposed to be seeing). The references I'm using are from the ECMA-262 standard.
[] + []
When using the addition operator, both the left and right operands are converted to primitives first (§11.6.1). As per §9.1, converting an object (in this case an array) to a primitive...
Position absolute but relative to parent
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What is the session's “secret” option?
... @MichaelMior express-session since 1.11.0 supports secret rotation. From the docs: "If an array of secrets is provided, only the first element will be used to sign the session ID cookie, while all the elements will be considered when verifying the signature in requests." (See expressjs/sessio...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
... <relativePath> to <parent> so that it resolves the parent pom from the repositories.
<parent>
<groupId>org.apache</groupId>
<artifactId>apache</artifactId>
<version>8</version>
<relativePath></relativePath>
</...
Extracting Nupkg files using command line
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and you have to execute it from console with admin privileges
– Sonic Soul
Sep 18 '17 at 22:53
7
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Ruby/Rails: converting a Date to a UNIX timestamp
How would I get a UNIX timestamp (number of seconds since 1970 GMT) from a Date object in a Rails app?
5 Answers
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How can I use UIColorFromRGB in Swift?
...ction (for getting a UIColor representation of a UInt value):
func UIColorFromRGB(rgbValue: UInt) -> UIColor {
return UIColor(
red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0,
green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0,
blue: CGFloat(rgbV...
What is the difference between conversion specifiers %i and %d in formatted IO functions (*printf /
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