strictmode js code example

Example 1: reacrt StrictMode

<React.StrictMode>
  <div>
    <ComponentOne />
    <ComponentTwo />
  </div>
</React.StrictMode>

// React's StrictMode is sort of a helper component that will help you write better react components, you can wrap a set of components with <StrictMode /> and it'll basically:

// Verify that the components inside are following some of the recommended practices and warn you if not in the console.
// Verify the deprecated methods are not being used, and if they're used strict mode will warn you in the console.
// Help you prevent some side effects by identifying potential risks.
// As the documentation says, strict mode is development oriented so you don't need to worry about it impacting on your production build.

// I've found it especially useful to implement strict mode when I'm working on new code bases and I want to see what kind of code/components I'm facing. Also if you're on bug hunting mode, sometimes it's a good idea to wrap with <StrictMode /> the components/blocks of code you think might be the source of the problem.

// So yeah, you're in the correct path to understanding strict mode, keep it up, I think it's one of those things you understand better when you play with them, so go ahead and have some fun.

Example 2: javascript use strict

// Whole-Script Strict Mode Syntax
'use strict';
var v = "Hi! I'm a strict mode script!";