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How do I enter a multi-line comment in Perl? [duplicate]
...to do multi line comments in Perl,
see Multi-line comments in perl
code and
Better ways to make multi-line comments in Perl for more
detail.
From faq.perl.org[perlfaq7]
How can I comment out a large block
of Perl code?
The quick-and-dirty way to comment out more than one line of Perl is
...
What’s the purpose of prototype? [duplicate]
... this.name = name;
}
}
The set_name function is created de novo each and every time you create an animal. But when you do this
animal.prototype.set_name = function(name){
this.name = name;
}
The function does not have to be re-created each time; it exists in one place in the prototype....
require file as string
I'm using node + express and I am just wondering how I can import any file as a string. Lets say I have a txt file all I want is to load it into a variable as such.
...
安装Adobe cs6出错：“please uninstall and reinstall the product” - 更...
安装Adobe cs6出错：“please uninstall and reinstall the product”---------------------------配置错误---------------------------请卸载并重新安装该产品。如果此问题仍然存在，请与 Adobe 技术支持联...---------------------------
配置错误
----------------------...
Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABL...
运行故障：edu.mit.appinventor aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being ...
Call to ‘set-and-coerce-property!’ has too few arguments (3; must be...
编译apk，报错：Call to ‘set-and-coerce-property!’ has too few arguments (3; must be 4)
原因是因为代码块有问题/报错，有空的地方没有填值，比如这种：
参考：https://community.appinventor.mi ... 3-must-be-4/20690/4
又学习到了新bug的解决方法...
Service and Characteristic are not published by the connected device -...
Service and Characteristic are not published by the connected device，报错如下：
问题原因：硬件/蓝牙芯片问题导致的，比如A硬件测试好的，换了B硬件没有修改uuid，就出现这个报错。
由于B硬件没有发布这些特征，就会报这个错误。
$(document).ready shorthand
Is the following shorthand for $(document).ready ?
8 Answers
8
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How to exit git log or git diff [duplicate]
...reen. Type h to get help.
If you don't want to read the output in a pager and want it to be just printed to the terminal define the environment variable GIT_PAGER to cat or set core.pager to cat (execute git config --global core.pager cat).
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Why should the copy constructor accept its parameter by reference in C++?
...cause if it's not by reference, it's by value. To do that you make a copy, and to do that you call the copy constructor. But to do that, we need to make a new value, so we call the copy constructor, and so on...
(You would have infinite recursion because "to make a copy, you need to make a copy".)
...