March 2018
Intermediate to advanced
592 pages
13h 44m
English
Content preview from Advanced Node.js Development
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Moving the JavaScript into a separate file
As you might have noticed in the last section, I accidentally used ES6 arrow functions inside our client-side JavaScript code. As I mentioned, we want to avoid this; the project is going to work correctly in Chrome, but if you tried to load it up on your mobile phone, Internet Explorer, Safari, or some versions of Firefox, the program would crash. So, instead of using arrow functions, we'll use regular functions by removing the arrow and adding the function keyword before our arguments. I'll do this for the on('connect' listener and for the on('disconnect' listener, adding the function keyword and removing the arrow:
socket.on('connect', function () { console.log('Connected to server');});socket.on('disconnect', ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.