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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
The following shows that "0" is false in Javascript:
12 Answers
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Stop form refreshing page on submit
How would I go about preventing the page from refreshing when pressing the send button without any data in the fields?
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How do I test if a string is empty in Objective-C?
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You can check if [string length] == 0. This will check if it's a valid but empty string (@"") as well as if it's nil, since calling length on nil will also return 0.
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Command to remove all npm modules globally?
Is there a command to remove all global npm modules? If not, what do you suggest?
24 Answers
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Git on Bitbucket: Always asked for password, even after uploading my public SSH key
...cket's SSH keys as explained , but Git still asks me for my password at every operation (such as git pull ). Did I miss something?
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How to find out which version of the .NET Framework an executable needs to run?
I've got an executable file, and I would like to know which versions of the .NET framework this file needs to be started.
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Facebook share button and custom text [closed]
Is there any way to make facebook share button which post custom text on the wall or news feed?
9 Answers
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...换行）， ‘\r’ （回车）， ‘\t’ （横向制表）， ‘\v’ （纵向制表）， ‘\\’ （反斜杠）， ‘\”‘ （双引号）， 以及 ‘\” （单引号)下面的四种方式定义了完全相同的字符串（其中的两个中括号可以用于定义有换行的字...
Passing variable number of arguments around
Say I have a C function which takes a variable number of arguments: How can I call another function which expects a variable number of arguments from inside of it, passing all the arguments that got into the first function?
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