Can someone explain the benefits of using a return function?
var a, b;
function addNumbers(a, b) {
a = prompt("Enter a number");
b = prompt("Enter another number");
return (a + b);
}
addNumbers();Can someone explain the benefits of using a return function?
var a, b;
function addNumbers(a, b) {
a = prompt("Enter a number");
b = prompt("Enter another number");
return (a + b);
}
addNumbers();.prompt() will give you a string, but if you need a number, use methods like parseInt() or parseFloat():
var num1, num2, sum;
function addition(num1, num2) {
num1 = parseInt(prompt("Type a number"));
num2 = parseInt(prompt("Type another number"));
return (num1 + num2);
}
console.log(addition());To store the values of x and y in your predefined variables, simply remove them as arguments from the test function - this way it will utilize the already stored values:
var x, y, result;
function test() {
x = parseInt(prompt("Enter a number"), 10);
y = parseInt(prompt("enter another Number"), 10);
return x + y;
}
console.log(test(), x, y);Additionally, following @j08691's advice, make sure to convert the results of prompt to numbers before performing any calculations.
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