Table of Contents
Is semicolon mandatory in JavaScript?
No, semicolons are usually optional in JavaScript (Google for ASI / automatic semicolon insertion). Using them makes the code look much cleaner though and ASI is a horrible mis-feature (at least in my opinion).
Do you need semicolons in node JS?
Stop Using Semicolons with Node. Semicolons are actually optional, because ECMAScript (the standard for Node. js and browser JavaScript implementations) has an automatic semicolon-insertion feature (ASI).
Do you need semicolons in ES6?
Even Google’s summarized ES6 style guide continues to require semi-colons. Include semi-colons at the end of each line that is a variable declaration using const, let, or var. Include semi-colons at the end of each statement that does a simple execution of code and does NOT contain curly braces.
Is semicolon necessary in Java?
Most, but not all, Java statements must end with a semicolon. The basic rule is that declaration and expression statements must end with a semicolon, but most other statement types do not.
Why are semicolons optional in JavaScript?
The reason semicolons are sometimes optional in JavaScript is because of automatic semicolon insertion, or ASI. ASI doesn’t mean that actual semicolons are inserted into your code, it’s more of a set of rules used by JavaScript that will determine whether or not a semicolon will be interpreted in certain spots.
Does every line in a Java program end with semicolon?
; – Every statement in a Java program must end with a semicolon. If you forget the semicolon Eclipse will give you an error message, but it may not be exactly clear as to what the error is. Leaving out semicolons can sometime confuse the compiler, just like a “run-on sentence” can confuse you when trying to read it.
Does TypeScript need semicolons?
Conclusion. Use TypeScript (with no-unexpected-multiline) and safely omit semicolons.
Why do people not like semicolons?
Distaste for the semicolon comes from a lot of different angles. Some people have a sheer aesthetic distrust of it. They just like short sentences, for instance. They think that’s more direct or more pleasing in some way, or more clear.
Does C++ required semicolon?
Semicolon is a command in C++. Usage of Semicolon in C++ is after class and structure definitions, variable declarations, function declarations, after each statement generally.