mv getTargetArray to lib/

- use it in filter and sort modules

Author: etpinard

src/lib/index.js

@@ -344,6 +344,17 @@ lib.mergeArray = function(traceAttr, cd, cdAttr) {
     }
 };
 
+lib.getTargetArray = function(trace, target) {
+    if(typeof target === 'string' && target) {
+        var array = lib.nestedProperty(trace, target).get();
+
+        return Array.isArray(array) ? array : [];
+    }
+    else if(Array.isArray(target)) return target.slice();
+
+    return false;
+};
+
 /**
  * modified version of jQuery's extend to strip out private objs and functions,
  * and cut arrays down to first <arraylen> or 1 elements

src/transforms/filter.js

@@ -144,9 +144,9 @@ exports.supplyDefaults = function(transformIn) {
 exports.calcTransform = function(gd, trace, opts) {
     if(!opts.enabled) return;
 
-    var target = opts.target,
-        filterArray = getFilterArray(trace, target),
-        len = filterArray.length;
+    var target = opts.target;
+    var targetArray = Lib.getTargetArray(trace, target);
+    var len = targetArray.length;
 
     if(!len) return;
 

src/transforms/sort.js

@@ -76,7 +76,7 @@ exports.calcTransform = function(gd, trace, opts) {
     if(!opts.enabled) return;
 
     var target = opts.target;
-    var targetArray = getTargetArray(trace, target);
+    var targetArray = Lib.getTargetArray(trace, target);
     var len = targetArray.length;
 
     if(!len) return;
@@ -98,18 +98,6 @@ exports.calcTransform = function(gd, trace, opts) {
     }
 };
 
-// TODO reuse for filter.js
-function getTargetArray(trace, target) {
-    if(typeof target === 'string' && target) {
-        var array = Lib.nestedProperty(trace, target).get();
-
-        return Array.isArray(array) ? array : [];
-    }
-    else if(Array.isArray(target)) return target.slice();
-
-    return false;
-}
-
 // TODO reuse for filter.js
 function getDataToCoordFunc(gd, trace, target, targetArray) {
     var ax;