Howto:Start using vectors and hashes in Nasal: Difference between revisions

Howto:Start using vectors and hashes in Nasal (view source)

358 bytes removed , 9 February 2012

m

→‎A hash based version (recommended): foreach index expression not an lvalue

20,741

edits

@@ Line 404: / Line 404: @@
 var waypoints[4] = new_waypoint();
 </syntaxhighlight>
-or even, using a vector and a foreach loop:
-<syntaxhighlight lang="php">
-var waypoint = {number:1,altitude:2,distance:3,angle:4,length:5,ID:6,bearing:7};
-var new_waypoint = func {return {parents:[waypoint] };}
-var waypoints = [0,0,0,0,0]; # initialize the vector to set its size
-foreach(var wpt; waypoints) {
- wpt = new_waypoint();
-}
-</syntaxhighlight>
 Once we start using a hash as a template for other hashes using the "parents" vector, we are actually creating a class that is copied to each new hash. This new copy of the class is called an "object" after creation.