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How do I return early from a rake task?
..."
next
puts "never printed"
end
Or you can move the code in a method and use return in the method.
task :foo do
do_something
end
def do_something
puts "startd"
return
puts "end"
end
I prefer the second choice.
...
const char * const versus const char *?
I'm running through some example programs to refamiliarize myself with C++ and I have run into the following question. First, here is the example code:
...
理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... convenient way of dealing with the situation where you have to do a setup and teardown to make something happen. A very good example for this is the situation where you want to gain a handler to a file, read data from the file and the close the file handler.
有一些任务，可能事先需要设...
Create a File object in memory from a string in Java
... file - passing an "empty" File object won't work.
– Andrei Volgin
Nov 5 '19 at 17:16
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How can I add a class attribute to an HTML element generated by MVC's HTML Helpers?
... using HTML Helpers, for example @Html.ActionLink() , @Html.BeginForm() and so on.
2 Answers
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how to ignore namespaces with XPath
...d of selecting a node like
/path/to/x:somenode
you can select all nodes and filter for the one with the correct local name:
/path/to/*[local-name() = 'somenode']
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How can I make a button redirect my page to another page? [duplicate]
...u shouldn't really have it inline like that, instead, put it in a JS block and give the button an ID:
<button id="myButton" class="float-left submit-button" >Home</button>
<script type="text/javascript">
document.getElementById("myButton").onclick = function () {
loca...
Media Queries: How to target desktop, tablet, and mobile?
I have been doing some research on media queries and I still don't quite understand how to target devices of certain sizes.
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How does Zalgo text work?
...e it undermines my notion of what a character is supposed to be. My understanding is that a character is supposed to move horizontally across a line and stay within a certain "container". Obviously the Zalgo text is moving vertically and doesn't seem to be restricted to any space.
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Saving enum from select in Rails 4.1
...t;sparkling</option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.key...