JavaScript Patterns to Cleanup your Code

Apr 11, 20137 likes12,675 views

The document discusses JavaScript patterns for improving code organization and managing variable scope using closures and prototypes. It provides various coding examples, illustrating how to maintain variable accessibility after function returns, as well as creating a calculator object with public methods. References to additional resources, including online training, sample code, and videos, are also included.

JavaScript Patterns
to Clean Up Your Code
Dan Wahlin

JavaScript Patterns to Cleanup your Code

This presentation is based on an
online training course available at
http://www.pluralsight.com

function myNonClosure() {
var date = new Date();
return date.getMilliseconds();
}
Variable lost after
function returns

function myClosure() {
var date = new Date();
//nested function
return function () {
return date.getMilliseconds();
};
}
Variable stays around
even after function
returns




var calc = {
tempValue: 1,
add: function(x, y){
return x + y;
}
};

my.calc = {
tempValue: 1,
add: function(x, y) {
return x + y;
}
};

var Calculator = function(eq) {
this.eqCtl = document.getElementById(eq);
};
Calculator.prototype = {
add: function (x, y) {
var val = x + y;
this.eqCtl.innerHTML = val;
}
};
var calc = new Calculator('eqCtl');
calc.add(2,2);

var calculator = function(eq) {
var eqCtl = document.getElementById(eq),
doAdd = function(x,y) {
var val = x + y;
eqCtl.innerHTML = val;
};
return { add: doAdd }; //Expose public member
}('eqCtl');
calculator.add(2,2);

var Calculator = function (eq) {
this.eqCtl = document.getElementById(eq);
};
Calculator.prototype = function() {
var doAdd = function (x, y) {
var val = x + y;
this.eqCtl.innerHTML = val;
};
return { add : doAdd };
}();
var calc = new Calculator('eqCtl');
calc.add(2,2);

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Oracle Cloud and AI Specialization ProgramVICTOR MAESTRE RAMIREZ

High Availability On-Premises FME Flow.pdfSafe Software

FME Flow is a highly robust tool for transforming data both automatically and by user-initiated workflows. At the Finnish telecommunications company Elisa, FME Flow serves processes and internal stakeholders that require 24/7 availability from underlying systems, while imposing limitations on the use of cloud based systems. In response to these business requirements, Elisa has implemented a high-availability on-premises setup of FME Flow, where all components of the system have been duplicated or clustered. The goal of the presentation is to provide insights into the architecture behind the high-availability functionality. The presentation will show in basic technical terms how the different parts of the system work together. Basic level understanding of IT technologies is required to understand the technical portion of the presentation, namely understanding the purpose of the following components: load balancer, FME Flow host nodes, FME Flow worker nodes, network file storage drives, databases, and external authentication services. The presentation will also outline our lessons learned from the high-availability project, both benefits and challenges to consider.

Providing an OGC API Processes REST Interface for FME FlowSafe Software

This presentation will showcase an adapter for FME Flow that provides REST endpoints for FME Workspaces following the OGC API Processes specification. The implementation delivers robust, user-friendly API endpoints, including standardized methods for parameter provision. Additionally, it enhances security and user management by supporting OAuth2 authentication. Join us to discover how these advancements can elevate your enterprise integration workflows and ensure seamless, secure interactions with FME Flow.

Down the Rabbit Hole – Solving 5 Training RoadblocksRustici Software

Feeling stuck in the Matrix of your training technologies? You’re not alone. Managing your training catalog, wrangling LMSs and delivering content across different tools and audiences can feel like dodging digital bullets. At some point, you hit a fork in the road: Keep patching things up as issues pop up… or follow the rabbit hole to the root of the problems. Good news, we’ve already been down that rabbit hole. Peter Overton and Cameron Gray of Rustici Software are here to share what we found. In this webinar, we’ll break down 5 training roadblocks in delivery and management and show you how they’re easier to fix than you might think.

Crypto Super 500 - 14th Report - June2025.pdfStephen Perrenod

This OrionX's 14th semi-annual report on the state of the cryptocurrency mining market. The report focuses on Proof-of-Work cryptocurrencies since those use substantial supercomputer power to mint new coins and encode transactions on their blockchains. Only two make the cut this time, Bitcoin with $18 billion of annual economic value produced and Dogecoin with $1 billion. Bitcoin has now reached the Zettascale with typical hash rates of 0.9 Zettahashes per second. Bitcoin is powered by the world's largest decentralized supercomputer in a continuous winner take all lottery incentive network.

FME for Good: Integrating Multiple Data Sources with APIs to Support Local Ch...Safe Software

Have-a-skate-with-Bob (HASB-KC) is a local charity that holds two Hockey Tournaments every year to raise money in the fight against Pancreatic Cancer. The FME Form software is used to integrate and exchange data via API, between Google Forms, Google Sheets, Stripe payments, SmartWaiver, and the GoDaddy email marketing tools to build a grass-roots Customer Relationship Management (CRM) system for the charity. The CRM is used to communicate effectively and readily with the participants of the hockey events and most importantly the local area sponsors of the event. Communication consists of a BLOG used to inform participants of event details including, the ever-important team rosters. Funds raised by these events are used to support families in the local area to fight cancer and support PanCan research efforts to find a cure against this insidious disease. FME Form removes the tedium and error-prone manual ETL processes against these systems into 1 or 2 workbenches that put the data needed at the fingertips of the event organizers daily freeing them to work on outreach and marketing of the events in the community.