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How to check if a file exists in Documents folder?
... if it was a main application you'll have access to the entire file system and you'll use the shared Documents directory. If you install it via iTunes or XCode you'll be using your applications' personal directory. It's nice to store files in your local directory for backup purposes.
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Bash/sh - difference between && and ;
I normally use ; to combine more than one command in a line, but some people prefer && . Is there any difference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell ...
Call UrlHelper in models in ASP.NET MVC
... the URL. I don't mind filling the usual blanks, like the hostname, scheme and so on.
7 Answers
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Android: How to change the ActionBar “Home” Icon to be something other than the app icon?
My application's main icon consists of two parts in one image: a logo and a few letters below it. This works well for the launcher icon for the app, but when the icon appears on the left edge of the ActionBar, the letters get cut off and it doesn't look good.
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Jinja2 shorthand conditional
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A shorthand for {{ value if value else 'No value' }} would be {{ value or 'No value' }}
– Don Grem
Dec 30 '14 at 11:39
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How to find the Number of CPU Cores via .NET/C#?
...er-threading-enabled processors, there are 2 physical processors, 4 cores, and 8 logical processors.
The number of logical processors is available through the Environment class, but the other information is only available through WMI (and you may have to install some hotfixes or service packs to ge...
How to keep the spaces at the end and/or at the beginning of a String?
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&#160 doesn't work... xml editor gives an error and you can't to build the project... \u0020 works fine!
– jcamacho
Jul 29 '13 at 8:18
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游戏中的算法与计算思维 04：第一张、第二张与匹配状态 · App Inventor 2 中文网
... 0.5) * 高)
}
}
when 画布1.Touched(x, y, touchedAnySprite) {
if x >= 0 and y >= 0 and x < 画布1.Width and y < 画布1.Height {
var i = floor(y / 高) * 4 + floor(x / 宽) + 1
if i
游戏中的算法与计算思维 07：按难度保存最佳成绩 · App Inventor 2 中文网
... 0.5) * 高)
}
}
when 画布1.Touched(x, y, touchedAnySprite) {
if x >= 0 and y >= 0 and x < 画布1.Width and y < 画布1.Height {
var i = floor(y / 高) * 4 + floor(x / 宽) + 1
if i
How to create NSIndexPath for TableView
...r to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this?
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