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Reading GHC Core
...piler inliner, Peyton Jones and Marlow, 1999. Core is described in Section 2.3, including details on the occurrence analysis annotations.
A transformation-based optimiser for Haskell, Peyton Jones and Santos, 1998. Core is described in S3, including a discussion of polymorphism and operational readi...
How to compare software version number using js? (only number)
....8', '3.4.7') //true
semver.ltr('3.4.8', '3.4.7') //false
semver.valid('1.2.3') // '1.2.3'
semver.valid('a.b.c') // null
semver.clean(' =v1.2.3 ') // '1.2.3'
semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
semver.gt('1.2.3', '9.8.7') // false
semver.lt('1.2.3', '9.8.7') // t...
How to navigate through textfields (Next / Done Buttons)
...hat applies mxcl's answer to make this particularly easy (adapted to swift 2.3 by Traveler):
extension UITextField {
class func connectFields(fields:[UITextField]) -> Void {
guard let last = fields.last else {
return
}
for i in 0 ..< fields.count - 1 {
...
Redis 的性能幻想与残酷现实 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...担心它的性能是否足以支撑,毕竟当时 Redis 还属于比较新的开源产品。但 Redis 官网宣称其是提供多数据结构的高性能存储,我们对其还是抱有幻想的。
幻想
要了解 Redis 的性能,我们先看看官方的基准性能测试数据,心里有...
Difference between android.app.Fragment and android.support.v4.app.Fragment
...t exclusively.
All the apps I write need to support right back to Android 2.3 and this is the easiest way to do it.
If you're supporting 11+ then stick to android.app.Fragment.
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URL encoding the space character: + or %20?
...to percent-encode all character except "unreserved" defined in RFC-3986, p.2.3
unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
The implementation depends on the programming language that you chose.
If your URL contains national characters, first encode them to UTF-8 and then percent-encode th...
Rails: Check output of path helper from console
...In a Rails console, you can call app.post_path. This will work in Rails ~= 2.3 and >= 3.1.0.
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How to add local jar files to a Maven project?
...o:
<path-to-file>: the path to the file to load e.g → c:\kaptcha-2.3.jar
<group-id>: the group that the file should be registered under e.g → com.google.code
<artifact-id>: the artifact name for the file e.g → kaptcha
<version>: the version of the file e.g → 2.3
...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...dule_timeout指定),还是没人唤醒,则调用select的进程会重新被唤醒获得CPU,进而重新遍历fd,判断有没有就绪的fd。
(8)把fd_set从内核空间拷贝到用户空间。
总结:
select的几大缺点:
(1)每次调用select,都需要把fd集合从...
What is Data URI support like in major email client software?
...3.0
Thunderbird latest
These mobile clients do show data URIs:
Android 2.3
Android 4.0
BlackBerry 5 OS
iPad
iPhone 3GS
iPhone 4S
iPhone 5
None of the webmail clients showed data URIs.
These desktop clients don't:
Lotus Notes 6.5
Lotus Notes 7
Lotus Notes 8.5
Outlook 2000
Outlook 2002/XP
Out...
