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Do I need to use a semicolon after every function in JavaScript?
Commonly, adding semicolons in JavaScript is optional. Simple statements in JavaScript are generally followed by a semicolon character, just as they are in C, C++, and Java. JavaScript, however, allows you to omit this semicolon if each of your statements is placed on a separate line.
No need of a semicolon in a function declaration:
function functionname(s) { }
If the function is written as a statement, it should have a semicolon like any other statement in JavaScript:
var a = function functionname(s) { };
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