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scope.get(key [, options])
Walks up the scope to find a value at key. Stops at the first context where key has
a value.
scope.get("first.name");
Parameters
- key
{key}:A dot-separated path. Use
"."if you have a property name that includes a dot.
Returns
{*}:
The found value or undefined if no value is found.
Use
scope.get(key) looks up a value in the current scope’s
context, if a value is not found, parent scope’s context
will be explored.
var list = [{name: "Justin"}, {name: "Brian"}];
var justin = list[0];
var curScope = new Scope(list).add(justin);
curScope.get("name"); //-> "Justin"
curScope.get("length"); //-> 2
Prefixing a key with "./" prevents any parent scope look ups.
Prefixing a key with one or more "../" shifts the lookup path
that many levels up.
var list = [{name: "Justin"}, {name: "Brian"}];
list.name = "Programmers";
list.surname = "CanJS";
var justin = list[0];
var brian = list[1];
var curScope = new Scope(list).add(justin).add(brian);
curScope.get("name"); //-> "Brian"
curScope.get("surname"); //-> "CanJS"
curScope.get("./surname"); //-> undefined
curScope.get("../name"); //-> "Justin"
curScope.get("../surname"); //-> "CanJS"
curScope.get(".././surname"); //-> "undefined"
curScope.get("../../name"); //-> "Programmers"