Web Reference: What Is the Role of Semicolons in JavaScript, and Programming in General? In JavaScript, and many other programming languages, semicolons help delineate statements and improve code readability. In JavaScript, a semicolon (;) is used to indicate the end of a statement. Mar 8, 2025 · The semicolon is important in many programming languages for the compiler to understand the code, as it denotes the end of a statement. However, in JavaScript, adding a semicolon at the end of every line is not always necessary. A semicolon will be automatically inserted if a token is encountered by the JavaScript parser that both would not be allowed if a semicolon did not exist, and that token is separated from the previous by one or more line terminators (eg. newlines), a closing brace }, or the final parenthesis ()) of a do-while loop. In other words: source text locat...
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