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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
In the following method definitions, what does the * and ** do for param2 ?
22 Answers
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what is faster: in_array or isset? [closed]
This question is merely for me as I always like to write optimized code that can run also on cheap slow servers (or servers with A LOT of traffic)
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When should I use a struct rather than a class in C#?
...ure instead of a class if instances of the
type are small and commonly short-lived or are commonly embedded in
other objects.
Do not define a structure unless the type has all of the following characteristics:
It logically represents a single value, similar to primitive types (int...
Should one use < or
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The first is more idiomatic. In particular, it indicates (in a 0-based sense) the number of iterations. When using something 1-based (e.g. JDBC, IIRC) I might be tempted to use <=. So:
for (int i=0; i < count; i++) // For 0-based AP...
Programming with white text on black background?
...one program with white text against black background? I have heard some rumors that it is better for your eyes. What's the case? Is it any better than the traditional black on white? What are the pros and cons?
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The application may be doing too much work on its main thread
...aw a plot/chart. I tried running different kinds of sample codes the emulator using 3 different free libraries, nothing is showing in the layout screen. The logcat is repeating the following message:
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viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
... a view controller is being pushed onto the navigation controller's stack, or whether it is because the view controller is disappearing because it has been popped.
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Text-align class for inside a table
Is there a set of classes in Twitter's Bootstrap framework that aligns text?
20 Answers
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convert '1' to '0001' in JavaScript [duplicate]
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This is a clever little trick (that I think I've seen on SO before):
var str = "" + 1
var pad = "0000"
var ans = pad.substring(0, pad.length - str.length) + str
JavaScript is more forgiving than some languages if the second argument to substring is negative so it will "overflow correc...
What is the difference between linear regression and logistic regression?
When we have to predict the value of a categorical (or discrete) outcome we use logistic regression . I believe we use linear regression to also predict the value of an outcome given the input values.
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