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HTML - Display image after selecting filename [duplicate]
... type='file' onchange="readURL(this);" />
<img id="blah" src="#" alt="your image" />
</body>
</html>
Script:
function readURL(input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function (e)...
HTML5 Video Dimensions
... for Android 49 unfortunately; only when the video has started playing the info becomes available. Any further insight on this? PS1: I only tried this with URLs to local files selected using an file selector input element. PS2 : it does work on iOS Safari.
– Visionscaper
...
Is there a command line utility for rendering GitHub flavored Markdown?
...ion exists, but I got it from the gollum documentation. Looking at rubydoc.info, it looks like you can use:
require 'github/markdown'
puts GitHub::Markdown.render_gfm('your markdown string')
in your Ruby code. You can wrap that easily in a script to turn it into a command line utility:
#!/usr/...
What is the difference between .*? and .* regular expressions?
...ion would match as few reps as possible.
References
regular-expressions.info/Repetition - Laziness instead of Greediness
Example 1: From A to Z
Let's compare these two patterns: A.*Z and A.*?Z.
Given the following input:
eeeAiiZuuuuAoooZeeee
The patterns yield the following matches:
A....
Adding a background image to a element
...d:
<body>
<img id="backgroundimage" src="bgimage.jpg" border="0" alt="">
</body>
and in your CSS file (stretch background):
#backgroundimage
{
height: auto;
left: 0;
margin: 0;
min-height: 100%;
min-width: 674px;
padding: 0;
position: fixed;
top: 0;
w...
What is the difference between a 'closure' and a 'lambda'?
...raction λx. preceding it. But the other symbol, y, is not bound – it is free. We don't know what it is and where it comes from, so we don't know what it means and what value it represents, and therefore we cannot evaluate that expression until we figure out what y means.
In fact, the same goes w...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...在的实际问题：
内存泄漏
错误分配，包括大量增加 free() 释放的内存和未初始化的引用
悬空指针
数组边界违规
这是所有类型。即使迁移到 C++ 面向对象的语言，这些类型也不会有明显变化；无论数据是简单类型还是 C 语...
“No backupset selected to be restored” SQL Server 2012
... out I was trying to restore to the wrong version of SQL. If you want more information on what's going on, try restoring the database using the following SQL:
RESTORE DATABASE <YourDatabase>
FROM DISK='<the path to your backup file>\<YourDatabase>.bak'
That should give you the ...
What happens to a github student account's repositories at the end of 2 years?
I just got upgraded to a free github micro plan using my university email address. I'm planning to use the private repositories for some class projects this semester, but I'm wondering what will happen to those repositories at the end of 2 years when my free student upgrade expires. I'm assuming it'...
Programmatically get own phone number in iOS
...the user for the number via keypad or contact chooser. You should make any information gathering as explicit as possible to the user. It may not be the most convenient, but it's very easy to save the number, so you only have to ask for it once.
– David Kanarek
...