Is javascript syntax case sensitive?

In programming languages, syntax rules are very important because they determine which rules the language should follow when writing code. For the Javascript language, there are some grammatical rules that we need to strictly abide by, and one of the common questions is whether Javascript grammar is case-sensitive?

The answer is that Javascript syntax is case-sensitive, which means that when writing Javascript code, strict case-sensitivity is required. For example, if you want to declare a variable, you need to use the lowercase letters "var", not the uppercase letters "VAR" or the mixed-case "vAr".

In Javascript, variable names, function names, property names, method names, etc. all need to follow capitalization rules. For example, if you define a function named "myFunction", you must use the same case when calling it in the code, otherwise it will cause a syntax error.

In addition, in Javascript, keywords also need to be strictly case-sensitive. In Javascript, keywords are words with special meanings, such as "if", "else", "for", etc. These words must be used in specific grammatical structures and only in the way they are defined. Using keywords with incorrect capitalization in your code will result in syntax errors.

It should be noted that when using Javascript in HTML, HTML itself is not case-sensitive, but Javascript still needs to strictly follow the case rules. Therefore, when writing Javascript code, in order to reduce errors and improve the readability of the code, it is recommended to strictly follow the capitalization rules.

In short, Javascript is a strictly case-sensitive language and it is very case-sensitive. Therefore, when writing Javascript code, you need to pay special attention to capitalization to ensure the correctness and readability of the code.

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