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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\...
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.
4,1302626 silver badges3535 bronze badges
...
get just the integer from wc in bash
...n different formats in different platforms. For example:
In OS X:
$ echo aa | wc -l
1
In Centos:
$ echo aa | wc -l
1
So using only cut may not retrieve the number. Instead try tr to delete space characters:
$ echo aa | wc -l | tr -d ' '
...
boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...gv[])
{
TParamSet set;
TParam *p1 = new TParam();
strcpy_s(p1->ID, "aa");
//p1->ID = "aa";
set.insert(p1);
TParam *p2 = new TParam();
strcpy_s(p2->ID, "bb");
//p2->ID = "bb";
set.insert(p2);
TParamSetByID::iterator it = set.find("aa");
if (it != set.end())
printf("found...
Win11 恢复传统右键菜单的方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...try Editor Version 5 00[HKEY_CURRENT_USER Software Classes CLSID {86ca1aa0 通过修改注册表实现，方法如下：
1、新建一个文件，命名为xxx.reg，拷贝如下内容：
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b...
Regular expression to match non-ASCII characters?
..._text = function (text) {
var regex = /([\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\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...
Can two different strings generate the same MD5 hash code?
...e code (alternate link to the paper).
Another test:
$ echo '0e306561559aa787d00bc6f70bbdfe3404cf03659e704f8534c00ffb659c4c8740cc942feb2da115a3f4155cbb8607497386656d7d1f34a42059d78f5a8dd1ef' | xxd -r -p | tee >/dev/null >(md5) >(sha1sum)
756f3044edf52611a51a8fa7ec8f95e273f21f82 -
cee9a4...