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In Mac, Ruby is preinstalled. You can open Terminal and input the followings to view the version of Ruby installed in your Mac ruby -v Update Ruby. You might want to update your Ruby, however there is no installer for Ruby like Windows. Instead, we can use MacPort. Step 1.
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It’s easy! Open Terminal and run the following commands Show hidden files defaults write com.apple.finder AppleShowAllFiles TRUE killall Finder Hide hidden files defaults write com.apple.finder AppleShowAllFiles FALSE killall Finder
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The best practice is looking at examples: [@"12" integerValue] [@"12345" longLongvalue] [@"12.45" floatValue] [@"12.45" doubleValue]
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To do formatting in objective-c, the result is 120.54. NSLog([NSString stringWithFormat:@"%.2f", 123*0.98]); It is nearly equivalent to the code in c: printf("%.2f", 123*0.98); Reference
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I have been using adobe products such as illustrator and photoshop for years to support my works. The lastest work would be making icons for my Chrome Extensions =]. Adobe script has no doubt saved me a lot of time. And what make me excitied is that the script can be
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I suddenly want to write a “Recent Comment” for this Blogspot as I am not satisfied with the default one. It is not difficult as I made use of jQuery to dual with the comment feed in Json format. All the data is avaliable and ready, what I do is
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It comes finally. I have been hearing friends have their Hotmail upgraded for a long time. However, I was disappointed every time when I log in. But I would be more appreciated if they offer IMAP or MS Exchange that allowing people access their mailbox any other software like Apple
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In order to make a program more flexible, it is normal to create an external file to store all the setting. For example, resolution setting of a game is saved in “config.ini” or “settings.prop” so that we can easily modify a program without recompile it. Here I would
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It is normal to create temporary files and folders to facilitate the process in programs. Apart from doing it in your working directory, why don’t we make use of the default temporary folder built in the Windows system? In the Windows working system, we know that the temporary folder
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Do you ever find it hard to get the millisecond in your programs? In default VBA does not provide this function, however we can get it with some tricks. Create a module and add the following codes. Private Type SystemTime Year As Integer Month As Integer DayOfWeek As Integer Day
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Normally, we need to go through bunch of clicks to do one action in MS Access. For example, “Compact and Repair Database”. This function can compact your database and make the file smaller. If you never used this, it may take some time to find it. Try it. LOL. But
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We can use shell to execute any programs. shell("iexplorer") shell("cmd") Please be reminded that we may need to execute in an indirect way. 'cmd: execute CMD.exe (Windows Command Processor) '/c: with commands 'dir: show all things in the default directory