Strict mode fixes mistakes that make it difficult for JavaScript engines to

▸ Strict mode fixes mistakes that make it difficult for JavaScript engines to perform optimizations: strict mode code can sometimes be made to run faster than identical code that’s not strict mode.

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION JAVASCRIPT CAN BE STRICT ▸ Strict mode prohibits some syntax likely to be defined in future versions of ECMAScript. ▸ It prevents, or throws errors, when relatively “unsafe” actions are taken (such as gaining access to the global object). ▸ It disables features that are confusing or poorly thought out. ▸ Strict mode makes it easier to write “secure” JavaScript.

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ JavaScript helps our webpages become more dynamic

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ Client-side means our code runs on the server

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ JavaScript and Java are basically the same thing

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ It’s a good idea to keep the layers of our webpages (HTML, CSS, JavaScript) separate

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ Async and defer represent two different script loading strategies

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ We don’t have to worry about when the DOM finishes loading

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ If your scripts don't need to wait for parsing and can run independently without dependencies, then use defer.

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION LET’S SEE WHAT YOU KNOW? ▸ This semester is going to be AWESOMESAUCE!

COMP1073 - MODULE ONE - JAVASCRIPT INTRODUCTION PRACTICE TIME ! Work Through The Tutorial Found Here: A_first_splash We will discuss and review this tutorial together next week :) !