Dynamically loading JavaScript synchronously

Question

I\'m using the module pattern, one of the things I want to do is dynamically include an external JavaScript file, execute the file, and then use the functions/variables in t

Answer 1

My strategy, classic example when load jQuery UI, i hope this can help you

( function( tools, libs ){
	
    // Iterator
    var require = function( scripts, onEnd ){
        
        onEnd = onEnd || function(){};
        
        if( !scripts || scripts.length < 1 )return onEnd();
        
        var src    = scripts.splice( 0, 1),
            script = document.createElement( "script" );
        
        script.setAttribute( "src", src );
        
        tools.addEvent( "load", script, function(){
            
            require( scripts, onEnd );
            
        } );
        
        document.getElementsByTagName( "head" )[ 0 ].appendChild( script );
        
    };
    
    // Install all scripts with a copy of scripts
    require( libs.slice(), function(){
    
        alert( "Enjoy :)" );
    
    } );
    
    // Timeout information
    var ti = setTimeout( function(){
        
        if( !window.jQuery || !window.jQuery.ui )alert( "Timeout !" );
        
        clearTimeout( ti );
        
    }, 5000 );

} )(

    { // Tools
    
        addEvent : function( evnt, elem, func ){
        
            try{

                if( elem.addEventListener ){

                    elem.addEventListener( evnt, func, false );

                }else if( elem.attachEvent ){

                     var r = elem.attachEvent( "on" + evnt, func );

                }

                return true;

            }catch( e ){

                return false;

            }		    

        }
    
    },
    [ // Scripts
    
        "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-alpha1/jquery.min.js",
        "https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"
        
    ]

);