GitHub
Twitterpeek
Read a value from the scope without being observable.
scope.peek(key [, options])
Works just like get, but prevents any calls to add.
Walks up the scope to find a value at key. Stops at the first context where key has
a value.
scope.peek( "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.peek(key) looks up a value in the current scope’s
context, if a value is not found, parent scope’s context
will be explored.
const list = [ { name: "Justin" }, { name: "Brian" } ];
const justin = list[ 0 ];
const curScope = new Scope( list ).add( justin );
curScope.peek( "name" ); //-> "Justin"
curScope.peek( "length" ); //-> 2