added .copy to space

1 files changed, 7 insertions, 0 deletions

diff --git a/space.js b/space.js
index 4a227cf..3fc14f4 100644
--- a/space.js
+++ b/space.js
@@ -143,6 +143,13 @@ function Space(){
     }
     return newspace;
   }
+
+  this.copy = function(){ // deeply copies `array` and `loc` to a new space
+    let newspace = new Space();
+    newspace.data = this.data.map(row => row.slice()); // Deep copy
+    newspace.loc = this.loc.slice();
+    return newspace;
+  }
 }
     
 module.exports = Space