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What exactly is Hot Module Replacement in Webpack?
...nd chunk ids are consistent between these builds. It uses a "records" json file to store them between builds (or it stores them in memory).
From the module view
HMR is a opt-in feature, so it only affects modules that contains HMR code. The documentation describes the API that is available in modu...
Which parts of Real World Haskell are now obsolete or considered bad practice?
...(>>=) and return. This leads us to the real definition of State.
-- file: ch14/State.hs
newtype State s a = State
runState :: s -> (a, s)
}
That's no longer true, because State and its friends are now implemented via
type State s = StateT s Identity
type Writer w = WriterT w Iden...
Node.js and CPU intensive requests
... out of the web-server is a GOOD thing. Keeping each task in "separate" js file promotes modularity and code reuse. It forces you to think about how to structure your program in a way that will make it easier to debug and maintain in the long run. Another benefit of a task queue is the workers can b...
How to add a custom right-click menu to a webpage?
...ice result (JSFiddle)
HTML
<menu id="ctxMenu">
<menu title="File">
<menu title="Save"></menu>
<menu title="Save As"></menu>
<menu title="Open"></menu>
</menu>
<menu title="Edit">
<menu title=...
MongoDB/NoSQL: Keeping Document Change History
...ing space in the process. For example, this historical NoSQL database json file can look like so:
{
_id: "4c6b9456f61f000000007ba6"
title: [
{ date: 20160101, value: "Hello world" },
{ date: 20160202, value: "Foo" }
],
body: [
{ date: 20160101, value: "Is this thing on?" },
...
I want to execute shell commands from Maven's pom.xml
... executable is working in a different way in Linux. If you want to run .sh file, you should write in the way below. Write it in pom.xml
<plugin>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<groupId>org.codehaus.mojo...
Why use JUnit for testing?
...b app, running reports, poring over millions of log lines across dozens of files and machines, reading generated and delivered emails, checking text messages, checking the path of a robot, filling a bottle of soda, aggregating data from a hundred web services, checking the audit trail of a financial...
Basic example of using .ajax() with JSONP?
...uest we have to use script HTMLl tags, the ones you usually use to load JS files, in order for JS to get data from another domain. Sounds weird?
Thing is - turns out script tags can be used in a fashion similar to XMLHttpRequest! Check this out:
script = document.createElement("script");
script.ty...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...An error");
} finally {
// out.close();
}
}
}
The web.xml file contains:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/x...
What are “named tuples” in Python?
...gt; pickle.loads(pickle.dumps(foo()))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
_pickle.PicklingError: Can't pickle <class '__main__.LocalNT'>: attribute lookup LocalNT on __main__ failed
Why/when should I use named tuples instead of normal tuple...