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What is the difference between RegExp’s exec() function and String’s match() function?
...w...
re_once = /([a-z])([A-Z])/
re_glob = /([a-z])([A-Z])/g
st = "aAbBcC"
console.log("match once="+ st.match(re_once)+ " match glob="+ st.match(re_glob))
console.log("exec once="+ re_once.exec(st) + " exec glob="+ re_glob.exec(st))
console.log("exec once="+ re_once.exec(st) + " e...
Symbolicating iPhone App Crash Reports
...sh log file:
...
Binary Images:
0xe1000 - 0x1f0fff +example armv7 <aa5e633efda8346cab92b01320043dc3> /var/mobile/Applications/9FB5D11F-42C0-42CA-A336-4B99FF97708F/example.app/example
0x2febf000 - 0x2fedffff dyld armv7s <4047d926f58e36b98da92ab7a93a8aaf> /usr/lib/dyld
...
In this...
What is the purpose of python's inner classes?
...parent = parent
def make_B(self):
return self.B(self)
class AA(A): # Inheritance
class B(A.B): # Inheritance, same class name
pass
This code leads to a quite reasonable and predictable behaviour:
>>> type(A().make_B())
<class '__main__.A.B'>
>>>...
Regular vs Context Free Grammars
... Regular grammars can be ambiguous (example from Kai Kuchenbecker: S -> aA | aB, B -> a, A -> a). The only thing is that there is only one way the nodes in the syntax tree can be positioned (for instance the associativity ambiguity does not exist when a regular grammar is used). Second: The...
PHP append one array to another (not array_push or +)
...thout array_merge, for avoid a memory copy.
$array1 = array_fill(0,50000,'aa');
$array2 = array_fill(0,100,'bb');
// Test 1 (array_merge)
$start = microtime(true);
$r1 = array_merge($array1, $array2);
echo sprintf("Test 1: %.06f\n", microtime(true) - $start);
// Test2 (avoid copy)
$start = microt...
How to apply two CSS classes to a single element
...he class attribute, separated by whitespace (ref):
<a class="c1 c2">aa</a>
2) To target elements that contain all of the specified classes, use this CSS selector (no space) (ref):
.c1.c2 {
}
share
|...
What characters are valid for JavaScript variable names?
...function|arguments|interface|protected|implements|instanceof)$)[$A-Z\_a-z\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\...
创业 比“直男癌”更可怕的是“技术癌” - 资讯 - 清泛网 - 专注C/C++及内核技术
...成为独角兽的潜质，所以用户价值+高壁垒+低成本是我们AA投资判断项目的重要指导原则之一。其中，高壁垒可以是来自技术壁垒，也可以是运营壁垒。例如，我们AA投资上半年投资的玩美自由行，它以大数据技术和强大的分析算...
How to escape single quotes within single quoted strings
...nd do expansion to single-quoted version.
Simple example:
$> echo $'aa\'bb'
aa'bb
$> alias myvar=$'aa\'bb'
$> alias myvar
alias myvar='aa'\''bb'
In your case:
$> alias rxvt=$'urxvt -fg \'#111111\' -bg \'#111111\''
$> alias rxvt
alias rxvt='urxvt -fg '\''#111111'\'' -bg...
How can I get the diff between all the commits that occurred between two dates with Git?
... answered Nov 24 '13 at 4:37
AA.AA.
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