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■ Note If you are curious about the ECMAScript standard, visit http://www.ecmascript.org.
Creating an Object Literal
CHAPTER 1 ■ REPRESENTING DATA WITH VALUES
The object value type provides a way for you to create a place in memory for related values, which may
be named with an identifier or string. Those related values are referred to as members. So, we say an
object contains members.
Alright, click Clear in both Firebug panels. Then create an empty object literal named iceCream by
keying in a pair of curly braces, followed of course by a semicolon.
var iceCream = {
};
Now add a member named "Chocolate Fudge Brownie" followed by an expression with the number
of calories per pint. Just like variables, members may contain a literal value or an expression for a value.
Note that the name of the member is separated from the value by a colon.
var iceCream = {
"Chocolate Fudge Brownie": 4 * 260
};
OK, now members are separated by a comma. So to add a second member, follow the first one with
a comma, like so:
var iceCream = {
"Chocolate Fudge Brownie": 4 * 260,
"Half Baked": 4 * 250
};
Now there are several more members so that we have ten in all. Just remember to separate them
with a comma. But don’t follow the final member—"Mission to Marzipan"—with a comma.
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