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Re-open *scratch* buffer in Emacs?
...
201
GNU Emacs default bindings:
C-xb *scratch* RET
or, more verbosely
M-x switch-to-buffe...
Android Webview - Completely Clear the Cache
...arCacheFolder(final File dir, final int numDays) {
int deletedFiles = 0;
if (dir!= null && dir.isDirectory()) {
try {
for (File child:dir.listFiles()) {
//first delete subdirectories recursively
if (child.isDirectory()) {
...
Strtotime() doesn't work with dd/mm/YYYY format
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403
Here is the simplified solution:
$date = '25/05/2010';
$date = str_replace('/', '-', $date);
e...
How do I change the default port (9000) that Play uses when I execute the “run” command?
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409
Play 2.x
In Play 2, these are implemented with an sbt plugin, so the following instructions...
How to convert an IPv4 address into a integer in C#?
...64.233.187.99. That's equivalent to:
64*2^24 + 233*2^16 + 187*2^8 + 99
= 1089059683
And indeed, http://1089059683/ works as expected (at least in Windows, tested with IE, Firefox and Chrome; doesn't work on iPhone though).
Here's a test program to show both conversions, including the network/hos...
MySQL vs MongoDB 1000 reads
...ve been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
...
Is it safe to assume a GUID will always be unique?
...ow there is a minute possibility of a clash but if I generated a batch of 1000 GUIDs (for example), would it be safe to assume they're all unique to save testing each one?
...
'transform3d' not working with position: fixed children
...ances, a fixed div would be positioned exactly where it is specified ( top:0px , left:0px ).
10 Answers
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界面布局组件 · App Inventor 2 中文网
...度 属性设置为自动且其中没有任何组件，则 高度 将是 100%。
如果水平布局的 宽度 属性设置为自动，则实际布局的宽度由组件的宽度之和确定。
如果一个 水平布局 的 宽度 属性设置为 自动，任何组件宽度 属性...
How to increase the execution timeout in php?
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130
You need to change some setting in your php.ini:
upload_max_filesize = 2M
;or whatever size yo...