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How to check if a file exists in Documents folder?
... Or just [0] via index accessing
– temporary_user_name
Dec 16 '14 at 0:09
firstObject is more safe than [0] a...
How do you default a new class to public when creating it in Visual Studio?
...1033.
Visual Studio 2010 (10.0) and below: There is a zip file in there called Class.zip. Unpack this, edit the file to put in your public keyword then re-pack it (make sure you backup the original).
After this, make sure VS rebuilds it's cache (which is just the zipfiles unzipped into directorie...
How to check which version of v8 is installed with my NodeJS?
How is V8 installed along with NodeJs? What version is my current V8 engine?
12 Answers
...
From io.Reader to string in Go
...byte to a string, you could change the contents of the string. However, go allows you to disable the type safety mechanisms using the unsafe package. Use the unsafe package at your own risk. Hopefully the name alone is a good enough warning. Here is how I would do it using unsafe:
buf := new(bytes....
Convert string to title case with JavaScript
...return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
};
Call it like:
"pascal".toProperCase();
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How to get the width and height of an android.widget.ImageView?
...eight, finalWidth;
final ImageView iv = (ImageView)findViewById(R.id.scaled_image);
final TextView tv = (TextView)findViewById(R.id.size_label);
ViewTreeObserver vto = iv.getViewTreeObserver();
vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
public boolean onPreDraw() {
...
C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...释放对象拥有权限、引用计数等，控制权转移等）。auto_ptr 即是一种常见的智能指针。
智能指针通常用类模板实现：
template <class T>
class smartpointer
{
private:
T *_ptr;
public:
smartpointer(T *p) : _ptr(p) //构造函数
{
}
T& oper...
Add icon to submit button in twitter bootstrap 2
... </td>
</tr>
<% end %>
</tbody>
</table>
<%= link_to(new_product_path, :class => 'btn btn-primary') do %>
New <i class="icon-plus icon-white"></i>
<% end %>
In case you're not using Rails, here is the output HTML for the l...
Get fully qualified class name of an object in Python
...lowing program
#! /usr/bin/env python
import foo
def fullname(o):
# o.__module__ + "." + o.__class__.__qualname__ is an example in
# this context of H.L. Mencken's "neat, plausible, and wrong."
# Python makes no guarantees as to whether the __module__ special
# attribute is defined, so we...
Making a LinearLayout act like an Button
...d Layout:
API 11+ (Pure Android):
android:background="?android:attr/selectableItemBackground"
API 7+ (Android + AppCompat Support Library):
android:background="?attr/selectableItemBackground"
Any API:
android:background="@android:drawable/list_selector_background"
Answers above still true ...