Use == false instead of === false for all options that default to true.

These expression are true:
- false == false
- false == 0
While these are false:
- false == null
- false == undefined

.jshintrc

@@ -7,6 +7,7 @@
   "supernew": true,
   "laxbreak": true,
   "eqeqeq": false,
+  "-W041": false,
   "eqnull": true,
   "loopfunc": true,
   "boss": true,

src/core/Base.js

@@ -528,7 +528,7 @@ Base.inject(/** @lends Base# */{
 
         exportJSON: function(obj, options) {
             var json = Base.serialize(obj, options);
-            return options && options.asString === false
+            return options && options.asString == false
                     ? json
                     : JSON.stringify(json);
         },

src/core/Emitter.js

@@ -90,7 +90,7 @@ var Emitter = {
         if (setTarget)
             event.currentTarget = this;
         for (var i = 0, l = handlers.length; i < l; i++) {
-            if (handlers[i].apply(this, args) === false) {
+            if (handlers[i].apply(this, args) == false) {
                 // If the handler returns false, prevent the default behavior
                 // and stop propagation of the event by calling stop()
                 if (event && event.stop)

src/item/Item.js

@@ -154,7 +154,7 @@ new function() { // Injection scope for various item event handlers
         this._style = new Style(project._currentStyle, this, project);
         // Do not add to the project if it's an internal path,  or if
         // props.insert  or settings.isnertItems is false.
-        if (internal || hasProps && props.insert === false
+        if (internal || hasProps && props.insert == false
             || !settings.insertItems && !(hasProps && props.insert === true)) {
             this._setProject(project);
         } else {

src/path/Path.Constructors.js

@@ -22,7 +22,7 @@ Path.inject({ statics: new function() {
 
     function createPath(segments, closed, args) {
         var props = Base.getNamed(args),
-            path = new Path(props && props.insert === false && Item.NO_INSERT);
+            path = new Path(props && props.insert == false && Item.NO_INSERT);
         path._add(segments);
         // No need to use setter for _closed since _add() called _changed().
         path._closed = closed;
@@ -335,7 +335,7 @@ Path.inject({ statics: new function() {
                 to = Point.readNamed(arguments, 'to'),
                 props = Base.getNamed(arguments),
                 // See createPath() for an explanation of the following sequence
-                path = new Path(props && props.insert === false
+                path = new Path(props && props.insert == false
                         && Item.NO_INSERT);
             path.moveTo(from);
             path.arcTo(through, to);

src/path/PathItem.Boolean.js

@@ -67,7 +67,7 @@ PathItem.inject(new function() {
         // See if the item can be reduced to just a simple Path.
         if (reduce)
             result = result.reduce({ simplify: true });
-        if (!(options && options.insert === false)) {
+        if (!(options && options.insert == false)) {
             // Insert the resulting path above whichever of the two paths appear
             // further up in the stack.
             result.insertAbove(path2 && path1.isSibling(path2)

src/svg/SvgExport.js

@@ -95,7 +95,7 @@ new function() {
         attrs.y -= size.height / 2;
         attrs.width = size.width;
         attrs.height = size.height;
-        attrs.href = options.embedImages === false && image && image.src
+        attrs.href = options.embedImages == false && image && image.src
                 || item.toDataURL();
         return SvgElement.create('image', attrs, formatter);
     }

test/tests/SymbolItem.js

@@ -97,7 +97,7 @@ test('SymbolDefinition item selection', function() {
     path.selected = true;
     var definition = new SymbolDefinition(path);
     equals(function() {
-        return definition.item.selected === false;
+        return definition.item.selected == false;
     }, true);
     equals(function() {
         return paper.project.selectedItems.length === 0;