User:Jarle Pahr/Javascript: Difference between revisions
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=Examples= | =Examples= | ||
Function definition: | |||
var multiplybytwo = function (number) { | |||
var val = number * 2; | |||
console.log(val); | |||
}; | |||
Declare a variable: | Declare a variable: | ||
Revision as of 21:18, 24 September 2013
http://en.wikipedia.org/wiki/JavaScript
https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript
https://itunes.apple.com/us/itunes-u/programming-abstractions/id384232917
Examples
Function definition:
var multiplybytwo = function (number) {
var val = number * 2;
console.log(val);
};
Declare a variable:
var myage = 25;
Confirm dialog:
confirm("You rock!")
Print to screen:
console.log('Hello world')
Equal to:
console.log(5 === 7)
Not equal to:
A !== B
If:
if condition //if condition is true
{
execute some code
}
If/else:
if condition
{
execute some code
}
else
{
execute some other code
}
Substrings:
"wonderful day".substring(3,7)