Maria D. Campbell

Reach for it

February 6th, 2018

This past Sunday, I was working on a little project for my Evening JS Intensive class, and I found an inspirational and wonderful photo on Unsplash (above) taken by Bryan Minear. I really wanted to create a chat bubble over the hand and place random quotes within it, but I just couldn’t get it to work for me visually. I think what really bothered me was that it covered part of the photo. In the end, I trashed the idea of the chat bubble and went simple. Sometimes a photograph just really speaks to you and you just have to build something around it…and keep it simple to emphasize the power of the image and the message you are trying to convey with it.

The app is very simple as well. When you are trying to convey something powerful in a visual way, it’s best to keep it as clean and simple as possible. I created a button with the text Click me!. When the user clicks on it, a random quote appears. With each click, a new random quote appears. For the sake of brevity, I did not include that many quotes (10 to be exact), but this little app is providing me with fodder for something bigger in the near future.

I use document.createElement() to create all the element tags I need to build the application.

I use document.querySelector() when I want to retrieve an existing element, in my case body, so that I could apply styling to it AND .appendChild() to append children to it in order to render them to the document. If you want to get even more technical, to the DOM (Document Object Model). Of course all of these little projects are leading to our delving into React down the road. I use the .classList.add() method when I want to add a class to an element I have just created so that I can use it in my hover.scss. Certain styling could not be done in JS such as my pseudo classes ::before and ::after, and some styling of the <p></p> tag. I need to change the size of the font in certain screen widths, and I could not use media queries in JS, for example.

The following few lines of code make up the crux of the app:

// randomize the index retrieval of the quotes array so that each time the user clicks on the text rendered to the page, a random quote appears.
para.addEventListener('click', () => {
    const randomIndex = Math.floor(Math.random() * quotes.length);
    para.textContent = quotes[randomIndex];
})

I add a click event listener to the paragraph containing the random quotes. When the click event is triggered by the click of the button, the paragraph text, Click me is replaced by a random quote retrieved from an array I create called quotes which stores quotes in the form of strings. Their retrieval is randomized by multiplying the number of quotes represented by quotes.length with Math.random(), and then Math.floor() is applied to it in order to round down the random array index to a whole number. The randomized quote is then stored as the value of the text content of the paragraph, thereby initially replacing the text Click me!, and subsequent clicks replace the current text with a new randomized quote.

The original project we were supposed to create should have implemented either the mouseenter or mouseleave event, but I didn’t think that it was the best UI/UX to apply in this instance. I went with the click event. The original text for the project was not an array of quotes in the form of strings either. I just took it to the next level because I was so inspired by this image and by the Random Quote Machine (no longer available) project I had created a while back for FreeCodeCamp.

This project is 100% responsive and cross browser compatible.

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Tagged in: inspirational-images javascript arrays strings index-randomization responsive design
Categorized under: javascript
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