parentheses ()
Can be used for calling a function/method, or setting values, or variables, for the function to use.
function()
function(value1, value2)
function(value1, value2)
Grouping things together, such as conditions, or setting an order of equations.
(x + y) % z
(value 1 && value 2) || value 3
(value 1 && value 2) || value 3
Or to call a method on a string.
Brackets []
Can be used for creating arrays
var anArray = [x, y, z]
or accessing the index number of an array
anArray[0]
you can also use bracket notation instead of dot notation. For example, these two call the same condition:
document.getElementById[one]
document.getElementById.one
document.getElementById.one
Braces {}
Are used to encapsulate a loop, function, or object
function {
----
conditions
----
}
loop {
----
conditions
----
}
----
conditions
----
}
loop {
----
conditions
----
}
'single quotes' and "double quotes"
These can be used interchangably to enclose a string, or used as quote marks inside a string.
