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Java, How do I get current index/key in “for each” loop [duplicate]
... which won't be able to give you an index.
– Bjørn Vårdal
Aug 2 '17 at 0:25
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How do you discover model attributes in Rails?
... current_sign_in_at: datetime, last_sign_in_at: datetime,
current_sign_in_ip: string, last_sign_in_ip: string, created_at: datetime,
updated_at: datetime)"
Alternatively, having run rake db:create and rake db:migrate for your development environment, the file db/schema.rb will contain the author...
What does “async: false” do in jQuery.ajax()?
...lur event with a following sync call blocking it.
– PålOliver
Feb 19 '13 at 10:34
3
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Your build failed due to an error in the AAPT stage, not because of an...
...能手机）没有设置“允许来自未知来源的应用程序”安全权限集 - 转到设置/应用程序/未知来源APK 是为比目标设备上的版本更高的 Android 版本构建的如果之前安装过应用程序，请先尝试卸载旧版本App icon is oversized ('App not Installed'...
Catch multiple exceptions at once?
...e as many lines and far less readable.
– João Bragança
Sep 4 '12 at 21:57
24
@JoãoBragança: W...
Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
...ethod = :smtp
config.action_mailer.default_url_options = { :host => "my.ip.addr.here" }
config.action_mailer.smtp_settings = {
:address => "smtp.gmail.com",
:port => 587,
:domain => 'my.ip.addr.here:80',
:user_name => "my_email_name@gmail.com",
:password ...
What is the strict aliasing rule?
...an example that should not be surprising (live example):
int x = 10;
int *ip = &x;
std::cout << *ip << "\n";
*ip = 12;
std::cout << x << "\n";
We have a int* pointing to memory occupied by an int and this is a valid aliasing. The optimizer must assume that assignments...
How to easily truncate an array with JavaScript?
... as they are declared but not assigned any value.
– Håvard Geithus
Jun 15 '15 at 18:06
3
Amazing...
How to hash some string with sha256 in Java?
...code from the library and copy its code!
– Olav Grønås Gjerde
May 10 '16 at 10:11
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Difference between Python datetime vs time modules
...stamping.
If the system additionally runs the network time protocol (NTP) dæmon, one ends up with a pretty solid time base.
Here is the documentation of the time module.
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