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Node.js check if file exists
...ecause fs.exists(path, callback) now is deprecated
Another good way is fs-extra
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Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools
...ve a 64-bit OS? Do I need any of the features of 64-bit JDK? Are there any extra features in the 64-bit JDK?! Why won't this s*** play nice together!? F*** it I'm going 32-bit.
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Iterating through a JSON object
...he list contains two dicts. The dicts contain various key/value pairs, all strings. When you do json_object[0], you're asking for the first dict in the list. When you iterate over that, with for song in json_object[0]:, you iterate over the keys of the dict. Because that's what you get when you iter...
'printf' vs. 'cout' in C++
...t use different syntax. printf uses standard function syntax using pattern string and variable-length argument lists. Actually, printf is a reason why C has them - printf formats are too complex to be usable without them. However, std::cout uses a different API - the operator << API that retur...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...= 0, LPCTSTR lpszNewItem = NULL );
nFlags参数常用取值如下：
MF_STRING 表明添加的是一个不具有弹出属性的菜单项。
MF_POPUP 添加的一个弹出菜单项
MF_SEPARATOR 添加的是一个菜单分隔条
MF_OWNERDRAW 表明对应菜单具有自绘属性
nIDNewItem参...
How can I view the shared preferences file using Android Studio?
...TextView;
prefTextView = (TextView) findViewById(R.id.tv_pref);
Map<String, ?> prefs = PreferenceManager.getDefaultSharedPreferences(
context).getAll();
for (String key : prefs.keySet()) {
Object pref = prefs.get(key);
String printVal = "";
if (pref ...
Best Practices for Laravel 4 Helpers and Basic Functions?
...avel-4-blade-helper-functions/
Added benefit: You don't need to create an extra class and also keep the global namespace clean.
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Action Image MVC3 Razor
...nsion method for the code above:
// Extension method
public static MvcHtmlString ActionImage(this HtmlHelper html, string action, object routeValues, string imagePath, string alt)
{
var url = new UrlHelper(html.ViewContext.RequestContext);
// build the <img> tag
var imgBuilder = ...
How to create a GUID/UUID using iOS
...If you need to create several UUID, just use this method (with ARC):
+ (NSString *)GetUUID
{
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return (__bridge NSString *)string;
}
EDIT: Jan, 29 2014:
If you're targeting iO...
pythonic way to do something N times without an index variable?
...lds an improvement of approximately 30% over the standard for loop and an extra 19% over Martelli's.
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