muralikrishnat/app.js

## app.js
var App = {};

var addRoutes = function () {
    $NB.addRoute('/books/:id', function (params) {
        console.log('Route is ', params.Title, params.id);
    }, 'books');

    $NB.addRoute('/:category/:id', function (params) {
        console.log('Route is ', params.Title, params.category, params.id);
    }, 'category');

    $NB.addRoute('/:category/:id/:action', function (params) {
        console.log('Route is ', params.Title, params.category, params.id, params.action);
    }, 'category action');


    $NB.addRoute(['/', '/:pagename'], function (params) {
        console.log('Route is ', params.Title, params.pagename);
    }, 'page');
};


App.init = function () {
    addRoutes();
    $NB.loadController(location.pathname);
};

App.navigateTo = function (pageUrl) {
    $NB.navigateTo(pageUrl);
};

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Routing with pure Javascript</title>
</head>
<body>
<div class="container-app">
    <div>
        <ul>
            <li><a href="javascript:App.navigateTo('/home')">Home</a> </li>
            <li><a href="javascript:App.navigateTo('/aboutus')">About US</a> </li>
            <li><a href="javascript:App.navigateTo('/contactus')">Contact US</a> </li>
            <li><a href="javascript:App.navigateTo('/services')">Services</a> </li>
        </ul>
    </div>
</div>

<script src="{{cdn}}/jquery.js"></script>
<script src="{{localhost}}/js/vendor/routing.js"></script>
<script src="{{loclahost}}/js/app.js"></script>
<script>
    $(document).ready(function () {
        if(App){
            App.init();
        }
    });
</script>
</body>
</html>

## js-routing.js
//self invoking function which binds routing object to 'window' object
(function (window) {
    //just a variable/object
    var $M = {};
    //list that holds routing details i.e., route url and function to execute
    $M.RoutingList = [];
    //to check status of pages
    $M.currentPage = '';

    //Routing class which has multiple properties i.e., url,function to execute when
    var RoutingClass = function (u, f, t) {
        this.Params = u.split('/').filter(function(h){ return h.length > 0; });
        this.Url = u;
        this.Fn = f;

        this.Title = t;
    };


    //simple utility function that return 'false' or url params
    //will parse url and fetches param values from 'location.href'
    var checkParams = function (urlParams, routeParams) {
        var paramMatchCount = 0, paramObject = {};

        for(var i =0 ; i < urlParams.length ; i++){
            var rtParam = routeParams[i];
            if(rtParam.indexOf(':') >= 0){
                paramObject[rtParam.split(':')[1]] = urlParams[i];
                paramMatchCount += 1;
            }
        }

        if(paramMatchCount === urlParams.length){
            return paramObject;
        }

        return false;
    };


    //will executes 'function(s)' which are binded to respective 'url'
    //along with values of url params for e.g.,
    //:     /:page/:pageid
    //:     /home/3434434
    //values will be page=>home and pageid=>3434434
    $M.loadController = function (urlToParse) {
        if($M.currentPage !== urlToParse) {
            $M.previousPage = $M.currentPage;
            $M.currentPage = urlToParse;
            var uParams = urlToParse.split('/').filter(function (h) {
                return h.length > 0;
            });
            var isRouteFound = 0;
            for (var i = 0; i < $M.RoutingList.length; i++) {
                var routeItem = $M.RoutingList[i];
                if (routeItem.Params.length === uParams.length) {
                    var _params = checkParams(uParams, routeItem.Params);
                    if (_params) {
                        _params.Title = routeItem.Title;
                        isRouteFound += 1;
                        routeItem.Fn.call(null, _params);
                    }
                }
            }
        }else{
            console.log('you are on same page dude!!!!');
        }
    };


    //uses browsers pushSate functionality to navigate from one page to another
    //and loads respective controller to execute
    $M.navigateTo = function (navigateTo) {
        window.history.pushState(null, null, navigateTo);
        $M.loadController(navigateTo);
    };

    //will add 'url' and 'function' to routing list
    $M.addRoute = function (urlToMatch, fnToExecute, t) {
        if(typeof urlToMatch === 'string'){
            $M.RoutingList.push(new RoutingClass(urlToMatch, fnToExecute, t));
        }else if(typeof urlToMatch && urlToMatch instanceof Array){
            urlToMatch.forEach(function (lItem) {
                $M.RoutingList.push(new RoutingClass(lItem, fnToExecute, t));
            });
        }

    };

    //binding routing object to window as '$NB'
    window.$NB = $M;
})(window);
	var App = {};

	var addRoutes = function () {
	$NB.addRoute('/books/:id', function (params) {
	console.log('Route is ', params.Title, params.id);
	}, 'books');

	$NB.addRoute('/:category/:id', function (params) {
	console.log('Route is ', params.Title, params.category, params.id);
	}, 'category');

	$NB.addRoute('/:category/:id/:action', function (params) {
	console.log('Route is ', params.Title, params.category, params.id, params.action);
	}, 'category action');


	$NB.addRoute(['/', '/:pagename'], function (params) {
	console.log('Route is ', params.Title, params.pagename);
	}, 'page');
	};



	App.init = function () {
	addRoutes();
	$NB.loadController(location.pathname);
	};

	App.navigateTo = function (pageUrl) {
	$NB.navigateTo(pageUrl);
	};
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Routing with pure Javascript</title>
	</head>
	<body>
	<div class="container-app">
	<div>
	<ul>
	<li><a href="javascript:App.navigateTo('/home')">Home</a> </li>
	<li><a href="javascript:App.navigateTo('/aboutus')">About US</a> </li>
	<li><a href="javascript:App.navigateTo('/contactus')">Contact US</a> </li>
	<li><a href="javascript:App.navigateTo('/services')">Services</a> </li>
	</ul>
	</div>
	</div>

	<script src="{{cdn}}/jquery.js"></script>
	<script src="{{localhost}}/js/vendor/routing.js"></script>
	<script src="{{loclahost}}/js/app.js"></script>
	<script>
	$(document).ready(function () {
	if(App){
	App.init();
	}
	});
	</script>
	</body>
	</html>
	//self invoking function which binds routing object to 'window' object
	(function (window) {
	//just a variable/object
	var $M = {};
	//list that holds routing details i.e., route url and function to execute
	$M.RoutingList = [];
	//to check status of pages
	$M.currentPage = '';

	//Routing class which has multiple properties i.e., url,function to execute when
	var RoutingClass = function (u, f, t) {
	this.Params = u.split('/').filter(function(h){ return h.length > 0; });
	this.Url = u;
	this.Fn = f;

	this.Title = t;
	};


	//simple utility function that return 'false' or url params
	//will parse url and fetches param values from 'location.href'
	var checkParams = function (urlParams, routeParams) {
	var paramMatchCount = 0, paramObject = {};

	for(var i =0 ; i < urlParams.length ; i++){
	var rtParam = routeParams[i];
	if(rtParam.indexOf(':') >= 0){
	paramObject[rtParam.split(':')[1]] = urlParams[i];
	paramMatchCount += 1;
	}
	}

	if(paramMatchCount === urlParams.length){
	return paramObject;
	}

	return false;
	};


	//will executes 'function(s)' which are binded to respective 'url'
	//along with values of url params for e.g.,
	//: /:page/:pageid
	//: /home/3434434
	//values will be page=>home and pageid=>3434434
	$M.loadController = function (urlToParse) {
	if($M.currentPage !== urlToParse) {
	$M.previousPage = $M.currentPage;
	$M.currentPage = urlToParse;
	var uParams = urlToParse.split('/').filter(function (h) {
	return h.length > 0;
	});
	var isRouteFound = 0;
	for (var i = 0; i < $M.RoutingList.length; i++) {
	var routeItem = $M.RoutingList[i];
	if (routeItem.Params.length === uParams.length) {
	var _params = checkParams(uParams, routeItem.Params);
	if (_params) {
	_params.Title = routeItem.Title;
	isRouteFound += 1;
	routeItem.Fn.call(null, _params);
	}
	}
	}
	}else{
	console.log('you are on same page dude!!!!');
	}
	};


	//uses browsers pushSate functionality to navigate from one page to another
	//and loads respective controller to execute
	$M.navigateTo = function (navigateTo) {
	window.history.pushState(null, null, navigateTo);
	$M.loadController(navigateTo);
	};

	//will add 'url' and 'function' to routing list
	$M.addRoute = function (urlToMatch, fnToExecute, t) {
	if(typeof urlToMatch === 'string'){
	$M.RoutingList.push(new RoutingClass(urlToMatch, fnToExecute, t));
	}else if(typeof urlToMatch && urlToMatch instanceof Array){
	urlToMatch.forEach(function (lItem) {
	$M.RoutingList.push(new RoutingClass(lItem, fnToExecute, t));
	});
	}

	};

	//binding routing object to window as '$NB'
	window.$NB = $M;
	})(window);