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what is “strict mode” and how is it used?
I've been looking over the JavaScript reference on the Mozilla Developer Network, and I cam>me m> across som>me m>thing called "strict mode" . I read it over and I'm having trouble understanding what it does. Can som>me m>one briefly explain (in general) what its purpose is and how it is useful?
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Convert a String In C++ To Upper Case
How could one convert a string to upper case. The examples I have found from googling only have to deal with chars.
29 Answ...
What is an example of the Liskov Substitution Principle?
I have heard that the Liskov Substitution Principle (LSP) is a fundam>me m>ntal principle of object oriented design. What is it and what are som>me m> examples of its use?
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MySQL order by before group by
...CREATE TABLE wp_posts
(`id` int, `title` varchar(6), `post_date` datetim>me m>, `post_author` varchar(3))
;
INSERT INTO wp_posts
(`id`, `title`, `post_date`, `post_author`)
VALUES
(1, 'Title1', '2013-01-01 00:00:00', 'Jim'),
(2, 'Title2', '2013-02-01 00:00:00', 'Jim')
;
The subquery is...
Python base64 data decode
...t information from it. It seems that module does not work. Can anyone tell m>me m> how?
9 Answers
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MySQL: Transactions vs Locking Tables
I'm a bit confused with transactions vs locking tables to ensure database integrity and make sure a SELECT and UPDATE remain in sync and no other connection interferes with it. I need to:
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How does this checkbox recaptcha work and how can I use it?
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This is a beta API for reCAPTCHA. I gather this from the source of their JS API: https://www.google.com/recaptcha/api.js referencing "API2". And I also found this: http://jaswsinc.com/recaptcha-ads/ Apparently they did an invite-only beta of their "no CAPTCHA reCAPTCHA" So......
C++ - passing references to std::shared_ptr or boost::shared_ptr
...t;foo> &sp) //Again, no copy here
{
...
sp->do_som>me m>thing();
...
}
How do you know that sp->do_som>me m>thing() will not blow up due to a null pointer?
It all depends what is in those '...' sections of the code. What if you call som>me m>thing during the first '...' that...
std::unique_ptr with an incomplete type won't compile
I'm using the pimpl-idiom with std::unique_ptr :
6 Answers
6
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What is 'Context' on Android?
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Putting it simply:
As the nam>me m> suggests, it's the context of current state of the application/object. It lets newly-created objects understand what has been going on. Typically you call it to get information regarding another part of your program (activ...