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What does the “@” symbol do in Powershell?
... in PowerShell to initialise arrays. What exactly does the @ symbol denote and where can I read more about it?
5 Answers
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How can I refresh a page with jQuery?
... This didn't work for me. window.location.href=window.location.href; and location.href=location.href; worked.
– twharmon
Oct 6 '16 at 6:40
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std::shared_ptr of this
...is std::enable_shared_from_this just for this purpose. You inherit from it and you can call .shared_from_this() from inside the class. Also, you are creating circular dependencies here that can lead to resource leaks. That can be resolved with the use of std::weak_ptr. So your code might look like t...
json.net has key method?
If my response has key "error" I need to process error and show warning box.
3 Answers
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How to override trait function and call it from the overridden function?
... You can't access its members directly. It's basically just automated copy and paste...
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Cleanest way to write retry logic?
...imply retry the same call can be dangerous if used as a general exception handling mechanism. Having said that, here's a lambda-based retry wrapper that you can use with any method. I chose to factor the number of retries and the retry timeout out as parameters for a bit more flexibility:
public st...
How to set child process' environment variable in Makefile
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I have GNU make 3.81, and all: <\n\t>export PROJ_ROOT=$(CURDIR)<\n\t>echo $(PROJ_ROOT)<\n> outputs the correct expansion for the first row, but only echo for the second one. PROJ_ROOT is not set after running make. Spaces around ...
prototype based vs. class based inheritance
In JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype.
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Insert a line break in mailto body
I would like to insert a line break into my mailto body.
I tried %0A, %0D and %0D%0A. Nothing worked for me.
I tested on Gmail, Yahoo, Apple Mail, Outlook 2010, Outlook.com and Thunderbird with Google Chrome on Mac OSX.
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How to verify a user's password in Devise
...se gem in rails. User password stored on my db which is encrypted_password and i am trying to find user by password, but I don't understand how to match password from form and encrypted_password in my db.
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