Skip navigation

On September 14th, 2017, we published revised versions of our Privacy Policy, Terms of Service and Website Use Policy and published a Cookie Policy. Your continued use of means you agree to these revised documents, so please take a few minutes to read and understand them.

Strict mode

Strict mode: The Good Parts of JavaScript and the Web
Strict mode: The Good Parts of JavaScript and the Web

Strict mode was added to ES5 as a way to repair parts of the JavaScript language through an opt-in approach. By adding ‘use strict’ to the top of a file or function, strict mode will be enabled. Doug shares a number of the rules enforced in strict mode and concludes his discussion on ES5 with a few resources and audience questions.

Resume Transcript Auto-Scroll
Skill Level Intermediate
10h 54m
Show More Show Less
Skills covered in this course
Web Web Development JavaScript

Continue Assessment

You started this assessment previously and didn't complete it. You can pick up where you left off, or start over.

Start Your Free Trial Now

Start your free trial now, and begin learning software, business and creative skills—anytime, anywhere—with video instruction from recognized industry experts.

Start Your Free Trial Now