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By News Staff
Save almost $4K off this 2021 Premium Learn to Code Certification Bundle
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Today's highlighted deal comes via our Online Courses section of the Neowin Deals store, where for only a limited time, you can save 98% off this Premium Learn to Code 2021 Certification Bundle. Amp up your programming skill set with 270+ hours of content on the leading coding languages — taught by top-rated instructors Ft. Rob Percival, Nick Walter, and more!.
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By News Staff
Save 98% off this 2021 Premium Learn to Code Certification Bundle
by Steven Parker
Today's highlighted deal comes via our Online Courses section of the Neowin Deals store, where for only a limited time, you can save 98% off this Premium Learn to Code 2021 Certification Bundle. Amp up your programming skill set with 270+ hours of content on the leading coding languages — taught by top-rated instructors Ft. Rob Percival, Nick Walter, and more!.
This deal consists of the following courses:
JavaScript Beginner Bootcamp
Understand the JavaScript Language & Learn to Create and Launch Interactive Webpages SwiftUI Apps for All Apple Platforms
Learn the True Magic of SwiftUI & Make Apps and Widgets for iPhone, Mac, iPad, Apple Watch, and AppleTV The Complete C# Programming Course
Master C# & .NET Framework with Code Challenges, Exercises, & Real-Life Examples The Complete Web Developer Course 2.0
Learn By Doing: Build 25 Websites & Mobile Apps Alongside Top-Rated Online Coding Instructor, Rob Percival! SwiftUI: The Complete Developer Course
Learn Everything You Need to Know About the SwiftUI Framework & Leverage All of Its Great New Technologies 2020 Complete Ruby on Rails 6 Bootcamp
Start From the Basics of Ruby on Rails & Go All the Way to Creating Your Own Applications Learn Python for Data Analysis & Visualization
Gear Yourself with Necessary Skills for Expert-Proven Data Science Techniques Raspberry Pi Essentials & Extras
Broaden Your Raspberry Pi's Horizons with This 1-Hour Crash Course PHP & MySQL: Certification Course for Beginners
Learn to Build Database-Driven Web Applications Using PHP & MySQL Bootstrap & jQuery: Certification Course for Beginners
Create Fully Animated, Interactive, Mobile Responsive Web Pages Using Bootstrap & jQuery Library HTML, CSS, & JavaScript: Certification Course for Beginners
A Comprehensive Guide for Beginners Interested in Learning HTML, CSS, & JavaScript to Build Interactive Web Pages Java Foundations
Master the General Purpose & Object-Oriented Language of Java to Enhance Your Skills for Mobile Development Making APIs with Django & Python
Use the REST Framework to Quickly Make APIs for Your Django Projects Making Websites with Python & Django 3: The Ultimate Beginner's Guide
Boot Up the Django 3 Web Framework Written In Python & Develop Websites Fast JavaScript Master Class
A Comprehensive Course Just About Every Fact on JavaScript You Could Ever Hope to Know Python for Everyone
Learn the Basic Syntax of How Python Language Works How to Get a Job as a Web Developer
Tips, Tricks & Industry Secrets to Help You Land That Web Development Job The Python Mega Course: Build 10 Real World Applications
A Complete Practical Python Course for Beginners & Intermediates! Master Python 3 by Building Actual Python Apps ROS2 For Beginners
Master the Key ROS Concepts to Create Powerful & Scalable Robot Applications The Complete Web Developer Course: Build 20 Websites
Learn the Fundamentals of HTML, CSS & JavaScript by Building 20 Real-World Websites Machine Learning for Absolute Beginners
Learn to Build Machine Learning Models Using Spreadsheet Data Java Interview Questions: Data Structures & Algorithms
The Best Java Interview Guide with the Most Common Beginner Questions Asked by FANG Companies
The Ultimate Amazon Honeycode Guide: Build 7 Apps
Build Apps to Automate Data Entry: Make Inventory Management Apps & More Easy Business Projects
Learn Flutter & Dart: Complete App Development Projects
Build Apps in Flutter, Google's Cross-Platform Framework & Code with Its Dart Programming Language
Complete Data Science Training with Python for Data Analysis
Learn Statistics, Visualization, Machine Learning & More
C++ Programming for Beginners
Master C++, An In-Demand, High-End Language Used for Programs, Games, Development Libraries, & More
The Complete Front-End Web Development Course
Take a Hands-on Approach to Learning Real Programming Skills
Good to know
Certification of completion included Length of time users can access this course: lifetime Redemption deadline: redeem your code within 30 days of purchase For a full description, specs, and instructor info, click here.
Here's the deal:
This Premium Learn to Code 2021 Certification Bundle normally costs* $4,056, but you can pick it up for just $59.99 for a limited time - that represents a saving of $3,996.01 (98%) off.
>> Get this deal, or learn more about it <<
See all discounted Online Courses. This is a time-limited offer.
Get $1 credit for every $25 spent · Give $10, Get $10 · 10% off for first-time buyers.
Not for you?
If this offer doesn't interest you, why not check out the following offers:
The Win Your Dream 2020 Tesla Model 3 Giveaway Ivacy VPN - 5 year subscription for just $0.99 per month NordVPN - 2 year subscription at up to 68% off +3 months for free! Private Internet Access VPN - subscriptions at up to 71% off Unlocator VPN or SmartDNS - unblock Geoblock with 7-day free trial Subscribe to Neowin - for $14 a year, or $28 a year for Ad-Free experience Disable Sponsored posts · Neowin Deals · Free eBooks · Neowin Store
Disclosure: This is a StackCommerce deal or giveaway in partnership with Neowin; an account at StackCommerce is required to participate in any deals or giveaways. For a full description of StackCommerce's privacy guidelines, go here. Neowin benefits from shared revenue of each sale made through our branded deals site, and it all goes toward the running costs.
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By News Staff
Save 98% off this Ultimate 2021 Web Developer & Designer Super Bundle
by Steven Parker
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Create an HTML Page with a Layout, Add a Title, Navigation, Some Written Content, an Image & A YouTube Video CSS 101: A Beginner's Guide to Beautiful Websites
Make Your Websites Look & Feel Great by Mastering CSS CSS 201: Intermediate level CSS
Learn More Advanced CSS & Be Able to Design Any Website in the Future CSS 301: Responsive Web Design
Create a Page Layout Using Flexbox & Make the Template Responsive Understanding How Websites Work
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Create Your First Interactive Battle Game with Computer Brain & Dynamic Values, Using HTML and Canvas HTML5 Canvas: Create 5 Games & 5 Projects
Amazing Effects with JavaScript on the HTML Canvas Element JavaScript: Create 5 Fun Word Games
Build 5 Amazing Interactive Games Perfect for Kids Using JavaScript JavaScript Math Games: Project for Learning Code from Scratch
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Length of time users can access this course: lifetime Certification of completion included Redemption deadline: redeem your code within 30 days of purchase For a full description, specs, and instructor info, click here.
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That's OK, there are other free eBooks on offer you can check out here, but be aware that these are all time-limited offers. If you are uncomfortable sharing your details with a third-party sponsor, we understand. Check out the Neowin Store for our preferred partners.
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By News Staff
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by Steven Parker
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Get $1 credit for every $25 spent · Give $10, Get $10 · 10% off for first-time buyers.
Not for you?
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Disclosure: This is a StackCommerce deal or giveaway in partnership with Neowin; an account at StackCommerce is required to participate in any deals or giveaways. For a full description of StackCommerce's privacy guidelines, go here. Neowin benefits from shared revenue of each sale made through our branded deals site, and it all goes toward the running costs.
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By News Staff
Pay What You Want for this Complete Learn to Code Certification Bundle
by Steven Parker
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Get $1 credit for every $25 spent · Give $10, Get $10 · 10% off for first-time buyers.
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If this offer doesn't interest you, why not check out the following offers:
The Win Your Dream 2020 Tesla Model 3 Giveaway Ivacy VPN - 5 year subscription for just $0.99 per month NordVPN - 2 year subscription at up to 68% off +3 months for free! Private Internet Access VPN - subscriptions at up to 71% off Unlocator VPN or SmartDNS - unblock Geoblock with 7-day free trial Subscribe to Neowin - for $14 a year, or $28 a year for Ad-Free experience Disable Sponsored posts · Neowin Deals · Free eBooks · Neowin Store
Disclosure: This is a StackCommerce deal or giveaway in partnership with Neowin; an account at StackCommerce is required to participate in any deals or giveaways. For a full description of StackCommerce's privacy guidelines, go here. Neowin benefits from shared revenue of each sale made through our branded deals site, and it all goes toward the running costs.
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Question
I'm pretty new to Javascript, and I'm trying to write a web page that displays the utilisation of our servers. I have it all working fine, except for the fact that over time the page consumes more and more memory, until eventually the browser just gives up and displays an out of memory error. If I disable the code that displays the graphs (it still collates the data, just doesn't display the resultant graphs) then memory usage stays pretty flat and well under control (typically under 25,000K - all memory stats taken from Chromes Task Manager). Add the graphs back in and it starts around 40,000K, but grows and grows. I've seen it reach nearly 1GB after many hours. The page is intended as a dashboard display, running all the time on a Smart TV, with the figures updated every minute.
Here is the code that draws the graphs:
function drawAChart(dataSource, chartHead, elementDIV){ // // Take the data, and draw the actual graph dataSource.unshift(chartHead); var dataS = new google.visualization.arrayToDataTable(dataSource); var chartS = new google.visualization.ColumnChart(document.getElementById(elementDIV)); chartS.draw(dataS, options); // Try and clean up to help the GC dataS = undefined; chartS = undefined; dataSource = undefined; }
When I comment out the lines relating to chartS then the memory usage stays low.
dataSource is an array, typically in the form [['Server name',<%age number 0-100>,<colour>], ...]
chartHead is typically ['Server','Useage', {role: 'style'}]
elementDIV is just the name of the DIV that the graph is displayed in.
The chart options are:
var options = { height: 130, legend: { position: 'none' }, chartArea: { left: 50, top: 10, width: '95%', height: '75%' }, vAxis: { viewWindow: { min: 0, max: 100 }, ticks: [{v:0, f:"0%"}, {v:25, f:"25%"}, {v:50, f:"50%"}, {v:75, f:"75%"}, {v:100, f:"100%"}] }, bar: { groupWidth: '95%' } };
I am using Google's charting routines from
which are initialised with:
google.charts.load('current', {packages: ['corechart']}); google.charts.setOnLoadCallback(doProcess);
I know I'm missing something, probably obvious to any seasoned Javascript devs, but I just can't figure it out. Hopefully I've given enough info for someone to point me in the right direction.
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