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How to get a string after a specific substring?
...
The easiest way is probably just to split on your target word
my_string="hello python world , i'm a beginner "
print my_string.split("world",1)[1]
split takes the word(or character) to split on and optionally a limit to the number of splits.
In this example split on "world" and limit it to onl...
Checkout another branch when there are uncommitted changes on the current branch
...tted version of that file), then you can switch freely.
Example:
$ echo 'hello world' > file.txt
$ git add file.txt
$ git commit -m "adding file.txt"
$ git checkout -b experiment
$ echo 'goodbye world' >> file.txt
$ git add file.txt
$ git commit -m "added text"
# experiment now cont...
php: determine where function was called from
...
$backtrace = debug_backtrace();
print_r( $backtrace );
}
epic( 'Hello', 'World' );
Output:
Array
(
[0] => Array
(
[file] => /Users/romac/Desktop/test.php
[line] => 5
[function] => fail
[args] => Array
...
Execute command on all files in a directory
... touch foo.txt bar.txt baz.txt
el@defiant ~/foo $ for i in *.txt; do echo "hello $i"; done
hello bar.txt
hello baz.txt
hello foo.txt
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Are string.Equals() and == operator really same? [duplicate]
...cts:
// Avoid getting confused by interning
object x = new StringBuilder("hello").ToString();
object y = new StringBuilder("hello").ToString();
if (x.Equals(y)) // Yes
// The compiler doesn't know to call ==(string, string) so it generates
// a reference comparision instead
if (x == y) // No
stri...
What is an optional value in Swift?
...re's an associated value which, in the example above, would be the String "Hello". An optional uses Generics to give a type to the associated value. The type of an optional String isn't String, it's Optional, or more precisely Optional<String>.
Everything Swift does with optionals is magic to ...
How can I make one python file run another? [duplicate]
...n
import yoursubfile
Put this in yoursubfile.py
#!/usr/bin/python
print("hello")
Run it:
python main.py
It prints:
hello
Thus main.py runs yoursubfile.py
There are 8 ways to answer this question, A more canonical answer is here: How to import other Python files?
...
How can I redirect the output of the “time” command?
...e &> please, where can I learn about these?
– hello_there_andy
Feb 20 '17 at 23:47
3
@hell...
Why is String.chars() a stream of ints in Java 8?
...Java 8.
In Java 7 I would have done it like this:
for (int i = 0; i < hello.length(); i++) {
System.out.println(hello.charAt(i));
}
And I think a reasonable method to do it in Java 8 is the following:
hello.chars()
.mapToObj(i -> (char)i)
.forEach(System.out::println);...
Do I need to manually close an ifstream?
...nclude <fstream>
using std::ofstream;
int main() {
ofstream ofs("hello.txt");
ofs << "Hello world\n";
return 0;
}
writes file contents. But:
#include <stdlib.h>
#include <fstream>
using std::ofstream;
int main() {
ofstream ofs("hello.txt");
ofs << "Hel...