JavaScript works on sets of statements. These statements have an appropriate syntax where the syntax depends on what the statements contain. A statement can have multiple lines in it. Basically, a statement is a set of instructions given to a computer browser to execute JavaScript code. A statement can return a value that is terminated with a semicolon. A statement can be a call for a certain action, for example:

Document.Write("hello world");

The preceding statement calls the in-built Write() function and prints the message hello world on the screen.

We can write multiple statements in one line separated by a semicolon; for example:

var a=20; var b=2;var c=a*b; document.write(c);

A statement can also be terminated with a line break, for ...

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