JavaScript_Succinctly

}
console.log(add(3, 3)); // Logs 6.
console.log(add('2', '2')); // Logs 'pass in numbers'.
The concept to take away here is that you can cancel a function's execution by using
the return keyword at any point in the execution of the function.
Defining a function (statement, expression, or constructor)
A function can be defined in three different ways: a function constructor, a function
statement, or a function expression. In the following example, I demonstrate each
variation.
Sample: sample89.html
/* Function constructor: The last parameter is the function logic,
everything before it is a parameter. */
var addConstructor = new Function('x', 'y', 'return x + y');
// Function statement.
function addStatement(x, y) {
return x + y;
}
// Function expression.
var addExpression = function (x, y) {
return x + y;
};
console.log(addConstructor(2, 2), addStatement(2, 2), addExpression(2,
2)); // Logs '4 4 4'.
Notes
Some have said that there is a fourth type of definition for functions, called the "named
function expression." A named function expression is simply a function expression that
also contains a name (e.g., var add = function add(x, y) {return x+y}).
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