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How can I check if a var is a string in JavaScript?
...
The typeof operator isn't an infix (so the LHS of your example doesn't make sense).
You need to use it like so...
if (typeof a_string == 'string') {
// This is a string.
}
Remember, typeof is an operator, not a function. Despite this, you will see typeof(var) being used a l...
How to write a UTF-8 file with Java?
...a FileOutputStream. You can then wrap this in an OutputStreamWriter, which allows you to pass an encoding in the constructor. Then you can write your data to that inside a try-with-resources Statement:
try (OutputStreamWriter writer =
new OutputStreamWriter(new FileOutputStream(PROPERT...
Haml: Control whitespace around text
...on:
I will first
= succeed ',' do
= link_to 'link somewhere', 'http://example.com'
- if @condition
then render this half of the sentence if a condition is met
Produces:
I will first
<a href="http://example.com">link somewhere</a>,
then render this half of the sentence if a condit...
How to check if a number is a power of 2
...imple trick for this problem:
bool IsPowerOfTwo(ulong x)
{
return (x & (x - 1)) == 0;
}
Note, this function will report true for 0, which is not a power of 2. If you want to exclude that, here's how:
bool IsPowerOfTwo(ulong x)
{
return (x != 0) && ((x & (x - 1)) == 0);
}
...
Difference between id and name attributes in HTML
...ipt/jQuery (has to be unique in a page)
name is used for form handling in PHP when a form is submitted via HTML (has to be unique in a form - to some extent, see Paul's comment below)
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Exploring Docker container's file system
...nd what's happening inside a container or what files exist in there. One example is downloading images from the docker index - you don't have a clue what the image contains so it's impossible to start the application.
...
Tutorials and libraries for OpenGL-ES games on Android [closed]
...ome good OpenGL ES tutorials for Android here too: http://obviam.net/index.php/category/opengl/
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Is there a WebSocket client implemented for Python? [closed]
...-client/
Ridiculously easy to use.
sudo pip install websocket-client
Sample client code:
#!/usr/bin/python
from websocket import create_connection
ws = create_connection("ws://localhost:8080/websocket")
print "Sending 'Hello, World'..."
ws.send("Hello, World")
print "Sent"
print "Receiving......
C++ Best way to get integer division and remainder
...riPinhollow Agree this is not a question about x86. I only gave it as an example, with the highly dubious assumption that other architectures probably do something similar.
– cnicutar
Aug 8 '17 at 14:28
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How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicat
...Awesome cheatsheet (or any other webfont icons).
i.e.:
fa-angle-right []
and use the last part of f... followed by a number like this, with the font-family too:
li:before {
content: "\f105";
font-family: FontAwesome;
color: red; /* or whatever color you prefer */
m...