This in Strict Mode

Lecture 196:- This in Strict Mode

In strict mode, the value of this inside a function is not coerced to the global object. Instead, if the function is called with a this value of undefined or null, this will remain undefined or null, respectively. This behavior helps to prevent common programming errors and makes it easier to write more secure code.

For example:

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'use strict'; function example() {  console.log(this); } example(); // logs undefined

In non-strict mode, the same code would log the global object (window in a browser environment).

Note that this behavior only applies to function calls made in strict mode. If a function is called in non-strict mode, the value of this will still be coerced to the global object if it is undefined.