Utilizing the same id in JavaScript for dual purposes while integrating Skycons

I'm currently using Skycons and it's working perfectly fine. However, I've run into an issue where if I have 2 canvas IDs, it will render the first one but leave the second one blank.

In my JavaScript code:

var icons = new Skycons({
            "color": "#73879C"
        }),
                list = [
                    "clear-day", "clear-night", "partly-cloudy-day",
                    "partly-cloudy-night", "cloudy", "rain", "sleet", "snow", "wind",
                    "fog"
                ],
                i;

        for (i = list.length; i--; )
            icons.add(list[i], list[i]);

        icons.play();

So when I need to display 3 icons

<canvas id="rain" width="128" height="128"></canvas>
<canvas id="partly-cloudy-day" width="128" height="128"></canvas>
<canvas id="partly-cloudy-day" width="128" height="128"></canvas>

The first two will render as expected, but the third doesn't because the ID has been used twice. I need all instances with the same ID to be rendered, since I don't know how many times I will use "partly-cloudy-day". I hope that makes sense, but feel free to ask any questions if needed.

Thank you for your assistance

Answer №1

Discovered this helpful resource on the topic of displaying the same icon twice: Skycons, cant display the same icon twice?

By implementing classes instead of IDs and adjusting your function as outlined in the linked answer:

var icons = new Skycons({
        "color": "#73879C"
    }),
    list = [
        "clear-day", "clear-night", "partly-cloudy-day",
        "partly-cloudy-night", "cloudy", "rain", "sleet", "snow", "wind",
        "fog"
    ],
    i;

for (i = list.length; i--;) {
    var weatherType = list[i],
        elements = document.getElementsByClassName(weatherType);
    for (e = elements.length; e--;) {
        icons.set(elements[e], weatherType);
    }
}

icons.play();

Check it out in action on JSFiddle here: https://jsfiddle.net/yuriy636/egg7p7hr/

Answer №2

IDs are meant to be unique identifiers for objects, much like passport numbers should not be duplicated. Imagine the chaos at border control if two passports had the same number! In HTML, only the first element with a specific id is recognized.

Instead of using IDs, it's better to utilize classes for styling and selecting elements. By searching for elements using $('.class-name') or

document.getElementByClassName('class-name')
, you can easily achieve the desired outcome.

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