Fix default for limit

Author: pedroparra

README.md

@@ -68,7 +68,7 @@ Allow only unique tags, default is `false`.
 
 ##### maxTags
 
-Allow limit number of tags, default is `0`.
+Allow limit number of tags, default is `-1` for infinite.
 
 ##### addOnBlur
 

src/index.js

@@ -71,7 +71,7 @@ class TagsInput extends React.Component {
     renderLayout: defaultRenderLayout,
     tagProps: {className: 'react-tagsinput-tag', classNameRemove: 'react-tagsinput-remove'},
     onlyUnique: false,
-    maxTags: 0
+    maxTags: -1
   }
 
   _removeTag (index) {
@@ -86,10 +86,14 @@ class TagsInput extends React.Component {
     this.setState({tag: ''})
   }
 
+  _maxTags (tags) {
+    return this.props.maxTags !== -1 ? tags < this.props.maxTags : true
+  }
+
   _addTag (tag) {
-    let {onlyUnique, maxTags} = this.props
+    let {onlyUnique} = this.props
     let isUnique = this.props.value.indexOf(tag) === -1
-    let limit = maxTags ? this.props.value.length < maxTags : true
+    let limit = this._maxTags(this.props.value.length)
     if (tag !== '' && limit && (isUnique || !onlyUnique)) {
       let value = this.props.value.concat([tag])
       this.props.onChange(value)

test/index.js

@@ -206,11 +206,11 @@ describe("TagsInput", () => {
     });
 
     it("should limit tags added", () => {
-        let comp = TestUtils.renderIntoDocument(<TestComponent maxTags={1} />);
+        let comp = TestUtils.renderIntoDocument(<TestComponent maxTags={0} />);
         let tag = randstring();
         add(comp, tag);
         add(comp, tag);
-        assert.equal(comp.len(), 1, "there should be one tag");
+        assert.equal(comp.len(), 0, "there should be 0 tags");
     });
 
     it("should add props to tag", () => {