Make deleteTrace handle big-indices-array properly [fixes #201]

src/lib/index.js

@@ -31,6 +31,7 @@ lib.parseDate = datesModule.parseDate;
 var searchModule = require('./search');
 lib.findBin = searchModule.findBin;
 lib.sorterAsc = searchModule.sorterAsc;
+lib.sorterDes = searchModule.sorterDes;
 lib.distinctVals = searchModule.distinctVals;
 lib.roundUp = searchModule.roundUp;
 

src/lib/search.js

@@ -56,6 +56,7 @@ function greaterThan(a, b) { return a > b; }
 function greaterOrEqual(a, b) { return a >= b; }
 
 exports.sorterAsc = function(a, b) { return a - b; };
+exports.sorterDes = function(a, b) { return b - a; };
 
 /**
  * find distinct values in an array, lumping together ones that appear to

src/plot_api/plot_api.js

@@ -1423,7 +1423,7 @@ Plotly.deleteTraces = function deleteTraces(gd, indices) {
     indices = positivifyIndices(indices, gd.data.length - 1);
 
     // we want descending here so that splicing later doesn't affect indexing
-    indices.sort().reverse();
+    indices.sort(Lib.sorterDes);
     for (i = 0; i < indices.length; i += 1) {
         deletedTrace = gd.data.splice(indices[i], 1)[0];
         traces.push(deletedTrace);

test/jasmine/tests/plot_api_test.js

@@ -141,6 +141,32 @@ describe('Test plot api', function() {
 
         });
 
+        it('should work with more than 10 indices', function() {
+            gd.data = [];
+
+            for(var i = 0; i < 20; i++) {
+                gd.data.push({
+                    name: 'trace #' + i
+                });
+            }
+
+            var expectedData = [
+                {name: 'trace #12'},
+                {name: 'trace #13'},
+                {name: 'trace #14'},
+                {name: 'trace #15'},
+                {name: 'trace #16'},
+                {name: 'trace #17'},
+                {name: 'trace #18'},
+                {name: 'trace #19'}
+            ];
+
+            Plotly.deleteTraces(gd, [0,1,2,3,4,5,6,7,8,9,10,11]);
+            expect(gd.data).toEqual(expectedData);
+            expect(PlotlyInternal.redraw).toHaveBeenCalled();
+
+        });
+
     });
 
     describe('Plotly.addTraces', function() {