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How can I count occurrences with groupBy?
... List<String> list = new ArrayList<>();
list.add("Hello");
list.add("Hello");
list.add("World");
Map<String, Long> counted = list.stream()
.collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
System....
Replace words in the body text
... on innerHTML:
document.body.innerHTML = document.body.innerHTML.replace('hello', 'hi');
Note that this will replace the first instance of hello throughout the body, including any instances in your HTML code (e.g. class names etc..), so use with caution - for better results, try restricting the s...
Ruby arrays: %w vs %W
...quences), while %W quotes like double quotes "".
irb(main):001:0> foo="hello"
=> "hello"
irb(main):002:0> %W(foo bar baz #{foo})
=> ["foo", "bar", "baz", "hello"]
irb(main):003:0> %w(foo bar baz #{foo})
=> ["foo", "bar", "baz", "\#{foo}"]
...
Can I export a variable to the environment from a bash script without sourcing it?
...urce ./export.bash
Now when echoing from main shell it works
echo $VAR
HELLO, VARABLE
We will now reset VAR
export VAR=""
echo $VAR
Now we will execute a script to source the variable then unset it :
./test-export.sh
HELLO, VARABLE
--
.
the code: cat test-export.sh
#!/bin/bash
...
What do linkers do?
...simple program to print your name to the screen would consist of:
printf("Hello Kristina!\n");
When the compiler compiled your program into an obj file, it simply puts a reference to the printf function. The linker resolves this reference. Most programming languages have a standard library of rou...
Remove a cookie
...
It's pointless to unset($_COOKIE['Hello']);. It changes nothing if you remove it.
– machineaddict
May 29 '14 at 7:00
31
...
Trim last character from a string
...
"Hello! world!".TrimEnd('!');
read more
EDIT:
What I've noticed in this type of questions that quite everyone suggest to remove the last char of given string. But this does not fulfill the definition of Trim method.
T...
Exact difference between CharSequence and String in java [duplicate]
...e of character.
Several things happen in your code:
CharSequence obj = "hello";
That creates a String literal, "hello", which is a String object. Being a String, which implements CharSequence, it is also a CharSequence. (you can read this post about coding to interface for example).
The next l...
Combining node.js and Python
...orks pretty well. It's called zeroRPC (http://www.zerorpc.io/). Here's the hello world.
Python "Hello x" server:
import zerorpc
class HelloRPC(object):
'''pass the method a name, it replies "Hello name!"'''
def hello(self, name):
return "Hello, {0}!".format(name)
def main():
...
Check if an element is a child of a parent
... can just use parent(), and give it the selector, as in target.parent('div#hello').
Example: http://jsfiddle.net/6BX9n/
function fun(evt) {
var target = $(evt.target);
if (target.parent('div#hello').length) {
alert('Your clicked element is having div#hello as parent');
}
}
...