Shane Bartholomeusz

Technical Solutions Consultant

Tag: JavaScript

Fixed: SPFx Web Part Long Load Time

Problem

While working on a SharePoint Framework (SPFx) webpart I noticed some odd performance issues. My SPFx webpart was very slow to initially load.

I was initially a bit puzzled by this however after some investigation I discovered the below solution.

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Microsoft Exam 70-480 Study Guide

Having recently passed the Microsoft 70-480 (Programming in HTML5 with JavaScript and CSS3) exam I wanted to share my experience and provide some tips to those that are soon planning to sit this exam.

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Overview

The 70-480 exam forms part of the MCSD: App Builder certification. The achieve the certification you must pass the following exams.

  • 70-357 – Developing Mobile Apps
  • 70-486 – Developing ASP.NET MVC Web Applications
  • 70-487 – Developing Microsoft Azure and Web Services

The content covered in the 70-480: Programming in HTML5 with JavaScript and CSS3 exam is as follows. Before attempting to complete the exam you should ensure you have knowledge in these key areas.

Implement and Manipulate Document Structures and Objects (20-25%)
> Create the document structure by using HTML
> Write code that interacts with UI controls
> Apply styling to HTML elements programmatically
> Implement HTML5 APIs
> Establish the scope of objects and variables
> Create and implement objects and methods

Implement Program Flow (25-30%)
> Implement program flow
> Raise and handle an event
> Implement exception handling
> Implement asynchronous programming
> Create a web worker process

Access and Secure Data (25-30%)
> Validate user input by using HTML5 elements
> Validate user input by using JavaScript
> Consume data
> Serialize, deserialize, and transmit data

Use CSS3 in Applications (25-30%)
> Style HTML text properties
> Style HTML box properties
> Create a flexible content layout
> Create an animated and adaptive UI
> Find elements by using CSS selectors and JQuery
> Structure a CSS file by using CSS selectors

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