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Convert String to double in Java
...l values, you need to replace "," in the number to "."
String number = "123,321";
double value = Double.parseDouble( number.replace(",",".") );
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Make Font Awesome icons in a circle?
...
padding: 12px 11px;
font-size: 20px;
color: #909090;
}
Have Fun
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Why shouldn't I use mysql_* functions in PHP?
What are the technical reasons for why one shouldn't use mysql_* functions? (e.g. mysql_query() , mysql_connect() or mysql_real_escape_string() )?
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Which HTML5 reset CSS do you use and why? [closed]
...ec includes recommended CSS declarations for CSS-capable browsers. For the fun of it I took them and reverted those, where it makes sense. You can view the result in this article.
However, I don't recommend using this in production. It's more a proof of concept and might better be used to give hint...
How to set button click effect in Android?
...ons, and you don't want to write xml-s for every button.
Kotlin Version:
fun buttonEffect(button: View) {
button.setOnTouchListener { v, event ->
when (event.action) {
MotionEvent.ACTION_DOWN -> {
v.background.setColorFilter(-0x1f0b8adf, PorterDuff.Mod...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...写Nginx共享内存的话，可以这样操作：
shell> curl -d "id=123" http://<HOST>/config
如果要读Nginx共享内存的话，可以这样操作：
shell> curl http://<HOST>/config?field=id
注：实际应用时，应该加上权限判断逻辑，比如只有限定的IP地址才能...
Can someone explain the dollar sign in Javascript?
...e easily identified and not mixed up with, say, integers.
The dollar sign function $() in jQuery is a library function that is frequently used, so a short name is desirable.
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How can I quickly sum all numbers in a file?
...
Just for fun, let's benchmark it:
$ for ((i=0; i<1000000; i++)) ; do echo $RANDOM; done > random_numbers
$ time perl -nle '$sum += $_ } END { print $sum' random_numbers
16379866392
real 0m0.226s
user 0m0.219s
sys 0m...
Why are flag enums usually defined with hexadecimal values
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Another fun fact with the x << y notation. 1 << 10 = KB, 1 << 20 = MB, 1 << 30 = GB and so on. It is really nice if you want to make a 16 KB array for a buffer you can just go var buffer = new byte[16 <<...
Flash CS4 refuses to let go
...n't seem to solve the problem. I'm going to chalk this one up to Adobe bug fun tiem. I'm going to mark it as solved, however.
– Ender
Feb 3 '10 at 19:23
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