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致PHP路上的“年轻人” - 杂谈 - 清泛网 - 专注C/C++及内核技术
...着年轻，赶紧造。
作者：Pangee
文章源自：http://pangee.cn/for-young-man@20150916.html
PHP
What's the complete range for Chinese characters in Unicode?
...EOGRAPHIC_DESCRIPTION_CHARACTERS
See my fuller discussion here. And this site is convenient for browsing Unicode.
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Why is isNaN(null) == false in JS?
...
Won't work if myInt="123d". parseInt converts "123d" to 123, which then fails the isNaN test.
– divesh premdeep
Feb 18 '15 at 13:34
...
Format a number as 2.5K if a thousand or more, otherwise 900
...rx, "$1") + si[i].symbol;
}
/*
* Tests
*/
var tests = [
{ num: 1234, digits: 1 },
{ num: 100000000, digits: 1 },
{ num: 299792458, digits: 1 },
{ num: 759878, digits: 1 },
{ num: 759878, digits: 0 },
{ num: 123, digits: 1 },
{ num: 123.456, digits: 1 },
{ num: 123.45...
How do you unit test private methods?
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Reading the docs found on Microsoft's website here I don't see any mention of the PrivateObject class being deprecated. I'm using MSVS 2013 and it works as expected.
– stackunderflow
Nov 26 '13 at 23:36
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In Ruby, how do I skip a loop in a .each loop, similar to 'continue' [duplicate]
...from within a block intentionally can be confusing. For instance:
def my_fun
[1, 2, 3].map do |e|
return "Hello." if e == 2
e
end
end
my_fun will result in "Hello.", not [1, "Hello.", 2], because the return keyword pertains to the outer def, not the inner block.
...
c++编译错误：invalid new-expression of abstract class type - C/C++ - ...
...全部需要实现，这样才能new 子类。
纯虚函数例如 void fun() = 0; 是纯虚函数，不是纯虚函数不作要求。
另外，void fun() { } 空函数体也是实现。
纯虚函数相当于C#中abstract抽象类。
=0 说明函数是抽象的方法...
c++编译错误：invalid new-expression of abstract class type - c++1y / s...
...实现，这样才能new 子类。
纯虚函数例如 void fun() = 0; 是纯虚函数，不是纯虚函数不作要求。
另外，void fun() { } 空函数体也是实现。
纯虚函数相当于C#中abstract抽象类。
=0 说明函数是...
Vertical (rotated) label in Android
...vate var padTop = 0
private var layout1: Layout? = null
override fun setText(text: CharSequence, type: BufferType) {
super.setText(text, type)
layout1 = null
}
private fun makeLayout(): Layout {
if (layout1 == null) {
metrics.width = height
...
std::function and std::bind: what are they, and when should they be used?
I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ .
...