Rename function for make options without value: type(Boolean) -> flag…

…(). It used only for Boolean type, any other type checks should be done by validation function.

README.md

@@ -145,9 +145,8 @@ Set a short key for option to be used with double hyphens from command line.<br>
 **@param** *String* `_long`<br>
 **@returns** *COA.Opt* `this` instance (for chainability)
 
-#### Opt.type
-Set a type of option. Mainly using with Boolean for options without value.<br>
-**@param** *Object* `_type`<br>
+#### Opt.flag
+Make an option boolean, i.e. option without value.<br>
 **@returns** *COA.Opt* `this` instance (for chainability)
 
 #### Opt.arr

lib/cmd.js

@@ -110,7 +110,7 @@ exports.Cmd = Cmd = (function() {
   */
   Cmd.prototype.helpful = function() {
     this._helpful = true;
-    return this.opt().name('help').title('Help').short('h').long('help').type(Boolean).act(function(opts, args) {
+    return this.opt().name('help').title('Help').short('h').long('help').flag().act(function(opts, args) {
       return this.exit(this.usage());
     }).end();
   };

lib/opt.js

@@ -50,13 +50,11 @@ exports.Opt = Opt = (function() {
     return this._cmd._optsByKey['--' + _long] = this;
   };
   /**
-  Set a type of option. Mainly using with Boolean for options without value.
-  @param {Object} _type
+  Make an option boolean, i.e. option without value.
   @returns {COA.Opt} this instance (for chainability)
   */
-  Opt.prototype.type = function(_type) {
-    this._type = _type;
-    this._flag = this._type === Boolean;
+  Opt.prototype.flag = function() {
+    this._flag = true;
     return this;
   };
   /**

src/cmd.coffee

@@ -105,7 +105,7 @@ exports.Cmd = class Cmd
         @opt()
             .name('help').title('Help')
             .short('h').long('help')
-            .type(Boolean)
+            .flag()
             .act (opts, args) ->
                 @exit @usage()
             .end()

src/opt.coffee

@@ -45,12 +45,11 @@ exports.Opt = class Opt
     long: (@_long) -> @_cmd._optsByKey['--' + _long] = @
 
     ###*
-    Set a type of option. Mainly using with Boolean for options without value.
-    @param {Object} _type
+    Make an option boolean, i.e. option without value.
     @returns {COA.Opt} this instance (for chainability)
     ###
-    type: (@_type) ->
-        @_flag = @_type is Boolean
+    flag: () ->
+        @_flag = true
         @
 
     ###*

tests/v.js

@@ -5,7 +5,7 @@ require('../lib/coa').Cmd()
     .opt()
         .name('version').title('Version')
         .short('v').long('version')
-        .type(Boolean)
+        .flag()
         .act(function(opts) {
             this.exit(
                 JSON.parse(require('fs').readFileSync(__dirname + '/../package.json'))