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What's the point of having pointers in Go?
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I really like example taken from http://www.golang-book.com/8
func zero(x int) {
x = 0
}
func main() {
x := 5
zero(x)
fmt.Println(x) // x is still 5
}
as contrasted with
func zero(xPtr *int) {
*xPtr = 0
}
func main() {
x := 5
zero(&x)
fmt.Pr...
Why do Objective-C files use the .m extension?
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9
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Find difference between timestamps in seconds in PostgreSQL
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30
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What is a Manifest in Scala and when do you need it?
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The compiler knows more information about types than the JVM runtime can easily represent. A Manifest is a way for the compiler to send an inter-dimensional message to the code at runtime about the type information that was lost...
MySQL: Selecting multiple fields into multiple variables in a stored procedure
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11
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How do you UrlEncode without using System.Web?
...What's the difference between EscapeUriString and EscapeDataString?
and recommends to use Uri.EscapeDataString() in any aspect.
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How to track child process using strace?
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19
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Scala: what is the best way to append an element to an Array?
... @Daniel Yes, I've just have a small memory hole when I wrote the comment and I didn't find the obvious word "sequence"
– Nicolas
Sep 21 '11 at 14:37
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Is there a way to use PhantomJS in Python?
...TH
driver.set_window_size(1024, 768) # optional
driver.get('https://google.com/')
driver.save_screenshot('screen.png') # save a screenshot to disk
sbtn = driver.find_element_by_css_selector('button.gbqfba')
sbtn.click()
If your system path environment variable isn't set correctly, you'll need to s...
How do I get the MIN() of two fields in Postgres?
...of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details). NULL values in the list are ignored. The result will be NULL only if all the expressions evaluate to NULL.
Note that GREATEST and LEA...