What good is it?
The rest operator was released with JavaScript version ES6 which was released in 2015 and used in most modern browsers.
The main use of the rest operator is in function arguments. Let’s look at the this example:
“use strict” // Always usefunction sum( a, b ) {
return a + b;
}sum(1, 2); // 3sum(1, 2, 3, 4); // 3sum(1); // NaN
In the first call to sum, sum(1,3), it returns 3 as expected, but in the second call, sum(1,2,3,4), it also returns 3 just ignoring the extra arguments.
All JavaScript functions all contain a property…
“use strict”;
Adding the key words “use strict” at the top of your file or functions places it in a strict operating context. The main benefit is it makes debugging easier.
Many errors that would be ignored or fail silently now generate errors or throw exceptions. It alerts you to problems with your code and directs you quickly to the probable source.
The most common way of turning this on is to place the phrase “use strict”; in quotes at the top of the file — before any other code. Why are these words in quotes instead of using key words? Remember…
What do I do about it?
There are a number of people complaining about their WordPress website loading speed.
We’ll take a look at the factors affecting the loading speed and what can be done to reduce it. The goal is to have the first page loaded in less than 2 seconds.
What affects loading speed and the solution:
Host considerations: Hosting technology
- Shared hosting. Your site is shared on the same host as others. It shares the server resources like read access memory (RAM) and processing power.
- Virtual private server (VPS). Fewer sites on the same host with resources evenly divided.
- Dedicated server. Only your site is on the server. …
A few days ago, I was notified by Medium that I was receiving a payout. I was ecstatic. I had become a member of Medium in May of 2019. I had dreamed of being a writer but I didn’t write. The payout was a surprise.
A few months ago, I made a career change. I had owned my own company for over 25 years. In the last few years, I had let my employees attrit out. It was down to just me. …
Back Story
Every self-help book or article that I have ever read, and I read plenty, begins with define what you want and set goals. I’m 71 years old now and I’ve never set a goal.
I’ve always been “smart” and “capable” with varied interests and good at everything I attempted. I was good in high school but bored. I joined the Army during the height of the Viet Nam war. I went to clerk school and was assigned to Fort Hood, Texas.
I got promotions quickly but I was bored there also. Volunteered for Viet Nam duty and was sent overseas…
On my career change journey, I’m building a new WordPress website for my daughter’s spa. I have to provide some background before I can get into the themes. So first, my vision for the spa site is:
- A header with logo, company name, contact information, and a navigation menu.
- A Home page giving a spa overview, some pictures, and links.
- The navigation menu will provide links to service types and, underneath the types, the individual services.
- The services are complex. They include about 25 massage types, over a dozen facial services, about a dozen body treatments, a couple of dozen…
I’ve spent over twenty-five years developing websites by hand. Now I’m having to rethink that. Let me tell you what I have discovered.
The Federal Government and corporations, large and small, have only recently begun to buy into the open-source movement. My last contract with the government, which only ended a couple of months ago, open source was really only used around the edges. The critical pieces are still being handcrafted.
When I began my move to B2C websites, the very low prices expected were quite a shock. …
The next item in my Change Career journey is WordPress. This platform has over 70,000,00 websites built on it. That’s between 30 and 40% of all websites. I’ve spent over 25 years in the industry and barely ever heard of WordPress.
For over two months, I’ve been taking video courses on WordPress as that is what the bulk of my target demographic is using for their businesses. WordPress consists of the PHP and Javascript languages, HTML, CSS, and the MySQL database. The back end is built mostly with PHP functions including MySQL reading and updates, theme and plugin building, and…
In my last post, I started my story about my career change. I gave up on looking for long term government contracts to go into building business to consumer (B2C) web sites. Since my marketing skills and my WordPress skills were non-existent, I chose to use Upwork for my marketing. Upwork takes 20% of the fee billed to the client.
Upwork has a system to vet potential freelancers. As I had signed up for Upwork sometime ago, I wasn’t subject to that. They still have hoops to jump through — profile requirements, badge requirements, language, Rising Talent Program. …
Recently, my long time contract working for the Federal government came to an end. I spent almost three years prototyping Chatbots, Cloud computing, and Robotic Process Automation applications. I made a lot of money and I worked from home.
I didn’t relish the thought of a new job/contract search. My wife doesn’t drive anymore and has some health issues, pretty much requiring me to keep working from home. I spent over 25 years creating web applications for government and commercial businesses and another 10 years before that doing the same for the Federal government. …
