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How to get a random number in Ruby
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Use rand(range)
From Ruby Random Numbers:
If you needed a random integer to simulate a roll of a six-sided die, you'd use: 1 + rand(6). A roll in craps could be simulated with 2 + rand(6) + rand(6).
Finally, if you just need a rando...
Can “this” ever be null in Java?
...d (§15.12), or to the object being constructed.
If you invoked a method from an object, then the object exists or you would have a NullPointerException before (or it's a static method but then, you can't use this in it).
Resources :
JLS - this keyword
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Function in JavaScript that can be called only once
...cuted only once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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Difference of keywords 'typename' and 'class' in templates?
... I understand the rule, but what exactly prevents the compiler from treating some_template<T> as a type internally? Sorry if I am missing something obvious.
– batbrat
Mar 28 '19 at 8:45
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Git pull results in extraneous “Merge branch” messages in commit log
...the pulled remote branch are rewritten. This can include published commits from other branches, e.g. with feature branches, which others may already have accessed before. As such, yes, rebasing without thinking about what you rebase is somewhat dangerous.
– poke
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Have bash script answer interactive prompts [duplicate]
...e things is called Expect.
You might also get away with just piping input from yes.
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How to clear the canvas for redrawing
...ime. I did redraw grid lines on every step, but without clearing the lines from the previous step.
– Georg Patscheider
Dec 5 '16 at 12:20
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How to get file_get_contents() to work with HTTPS?
...t and it still doesn't work. And allow_url_fopen. Only non https urls work from localhost.
– Curtis
Dec 24 '19 at 4:55
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Git Bash is extremely slow on Windows 7 x64
...ow network share.
I could not override HOMEDRIVE but that is not a problem from what I have seen.
Set the environment variable by right clicking
your computer on the desktop --> properties --> Advanced system settings --> Environment Variables
Add to User variables section
HOME=%USERPROF...
Using Enum values as String literals
...s where correctness depends on getting the exact name, which will not vary from release to release. Returns:the name of this enum constant
– SuperRetro
Apr 3 '17 at 9:28
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