Improved new file/history

2018-02-05 10:09:46 +13:00
parent a440752f73
commit e98978249c
2 changed files with 9 additions and 4 deletions
@@ -3,6 +3,12 @@ function History()
  this.index = 0;
  this.a = [];

+  this.clear = function()
+  {
+    this.a = [];
+    this.index = 0;
+  }
+
  this.push = function(data)
  {
    if(this.index < this.a.length-1){
@@ -35,6 +41,6 @@ function History()
    return copy(this.a[this.index]);
  }

-  function copy(data){ return data.slice(0); }
+  function copy(data){ return data ? data.slice(0) : []; }
  function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }
 }