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Ruby send vs __send__
... Example:
A, B, C = Module.new, Module.new, Module.new
B.include A #=> error -- private method
B.send :include, A #=> bypasses the method's privacy
C.public_send :include, A #=> does not bypass privacy
Update: Since Ruby 2.1, Module#include and Module#extend methods become public, so the...
Using the HTML5 “required” attribute for a group of checkboxes?
...'s a bit I pulled together for JQuery users, including a custom validation error message:
$cbx_group = $("input:checkbox[name^='group']");
$cbx_group.on("click", function() {
if ($cbx_group.is(":checked")) {
// checkboxes become unrequired as long as one is checked
$cbx_group.pr...
How to play audio?
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If you are getting the following error:
Uncaught (in promise) DOMException: play() failed because the user
didn't interact with the document first.
That means the user needs to interact with the website first (as the error message says). In this case...
Selenium wait until document is ready
... I tried this idea in a VB test app. Works most of the time. I get this error sometimes: System.InvalidOperationException : JavaScript error (UnexpectedJavaScriptError) at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse) Test app clicks on level 2 menu link,...
How to create a DataTable in C# and how to add rows?
...meters in exact same order as the columns were defined, else you'll get an error. (So use with caution!)
– Funka
Jan 29 '13 at 19:41
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Are C# events synchronous?
... be helpful
– johnny 5
Jan 15 at 18:05
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How do I enable EF migrations for multiple contexts to separate databases?
...run Enable-Migrations in the PM console (Visual Studio 2012), there's an error because of there being multiple contexts:
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How to check that an object is empty in PHP?
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The typecasting doesn't work for me, because I get the error: PHP Parse error: syntax error, unexpected '(array)' (array) (T_ARRAY_CAST) in ... I use PHP version 5.4.28 and the first option with two lines of code works for me.
– Coanda
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pytest: assert almost equal
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answered Sep 21 '16 at 18:05
dbndbn
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Loop backwards using indices in Python?
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yes, PEP-322 gives us a clear and least error-prone way to reverse iterations.
– Allen Shen
Jul 31 '19 at 20:25
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