if.js

来自「这是《JavaScript学习源代码》一书的源代码」· JavaScript 代码 · 共 10 行

// create two variables
var msg, num;
num = 7;

// test if the number is not exactly divisible by 2
if ( num % 2 != 0 ) 
{
  msg = num + " is an odd number.";
  alert( msg );
}