What are the advantages and disadvantages of using use strict ?

The "use strict" directive in JavaScript is used to enable strict mode, which is a more restricted variant of the language. Here are the advantages and disadvantages of using "use strict":

Advantages

1. Catches Common Coding Mistakes: Strict mode throws exceptions for common errors that are otherwise silent in non-strict mode, such as assigning values to non-writable properties or to undeclared variables[1][3][4][5][6][7][8][9][10][11].

2. Prevents Unsafe Actions: It disallows or throws errors for unsafe actions like gaining access to the global object, which can lead to more secure code[1][3][4][5][6][7][8][9][10][11].

3. Disables Confusing Features: Strict mode disables features that are considered confusing or poorly thought out, such as the with statement and octal literals[3][4][5][7][8][9][10][11].

4. Makes Code More Predictable: It helps in making the code more predictable and easier to debug by having a more consistent behavior[4][7][8][9][10][11].

5. Optimizes Performance: Some JavaScript engines can optimize strict mode code better than non-strict code, potentially leading to better performance[2][3][4][7][9][10][11].

6. Prepares for Future ECMAScript Versions: Strict mode prohibits some syntax that is likely to be defined in future ECMAScript versions, helping to future-proof code[3][7][8][9][10][11].

Disadvantages

1. Compatibility Issues: Not all browsers support strict mode, especially older versions. This can lead to compatibility issues if the code needs to run on outdated browsers[4][5][7][8][9][10][11].

2. Mixed Strict and Non-Strict Code: Mixing strict and non-strict code can lead to unpredictable behavior, especially if a developer is not aware that a library or a piece of code is running in strict mode[1][4][5][7][8][9][10][11].

3. More Verbose Code: S...