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Checking if a variable is an integer
...ch can meaningfully be converted to an Integer (NOT including things like "hello", which to_i will convert to 0):
result = Integer(obj) rescue false
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Check if a string has white space
...(s).some(char => whitespaceChars.includes(char));
}
const withSpace = "Hello World!";
const noSpace = "HelloWorld!";
console.log(hasWhiteSpace(withSpace));
console.log(hasWhiteSpace(noSpace));
console.log(hasWhiteSpace2(withSpace));
console.log(hasWhiteSpace2(noSpace));
I did not run perform...
How to get Sinatra to auto-reload the file after each change?
...s MyApp < Sinatra::Base
register Sinatra::Reloader
get '/' do
"Hello Testing1!"
end
end
You may want to set environment variable to development and conditionally load the gem.
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Converting user input string to regular expression
...vaScript RegExp object constructor.
var re = new RegExp("\\w+");
re.test("hello");
You can pass flags as a second string argument to the constructor. See the documentation for details.
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How to create a file in Linux from terminal window? [closed]
...cat
$ cat > myfile.txt
Now, just type whatever you want in the file:
Hello World!
CTRL-D to save and exit
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The Android emulator is not starting, showing “invalid command-line parameter”
I made a simple "Hello World" program in Eclipse . I added nothing to a Java file and only added a text view in file main.xml as
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How to log source file name and line number in Python
...eno)s\'')
log = logging.getLogger(os.path.basename(__file__))
log.debug("hello logging linked to source")
See Pydev source file hyperlinks in Eclipse console for longer discussion and history.
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Java generics T vs Object
.... You may invoke such a method as follows:
String response = doSomething("hello world");
OR
MyObject response = doSomething(new MyObject());
OR
Integer response = doSomething(31);
As you can see, there is polymorphism here.
But if it is declared to return Object, you can't do this unless you ...
Where is debug.keystore in Android Studio
...
I just ran the hello world project once on Android Studio, and it appeared at ~/.android/
– d34th4ck3r
Jan 21 '14 at 14:33
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gitignore without binary files
... .gitignore.
In your very specific, small-scope example, you can just put hello in your .gitignore.
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