JavaScript is loosely typed. You don't have to tell a string to be a string, and you don't need to require a function to accept an integer as its argument. This provides great flexibility for JavaScript.
https://www.tech-wiki.online/en/loosely-strongly-typed.html
Loosely typed and strongly typed languages
The main difference between using loosely typed languages and strongly typed languages In programming, we call it a languageLoose typeWhen you don't have to explicitly specify the types of variables and objects. A kindStrongly typedInstead, the language mu
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