Javascript onclick alternative in F# - SAFE

user_13986011 0
Viewed 99

I have two divs of matching sizes on a page, and want to hide one and display the other, swapping between them on a button click. Usually i would use a javascript click event to toggle display, but i am unsure of how to use default Javascript with SAFE, and was wondering if there was an F# alternative.

I want results similar to this (but in F#):

var divs = document.getElementsByClassName("square");

var inactive = document.getElementsByClassName("square inactive");

function swapDivsOnClick(div) {
    active = document.getElementById(div);
    inactive[0].classList.remove("inactive");

    active.classList.add("inactive");
}
.square {
    width: 150px;
    height: 150px;
}

#red {
    background-color: red;
}

#green {
    background-color: green;
}

.inactive {
    display: none;
}
h1 {
    color: white;
}
<!DOCTYPE html>
<html>

<head>
    <link rel="stylesheet" href="css/styles.css">
    <title>Page Title</title>
</head>

<body>
    <div id="red" class="square">
        <button class="toggle" onclick="swapDivsOnClick('red')">Click Me</button>
        <h1>Div 1</h1>
    </div>
    <div id="green" class="square inactive">
        <button class="toggle" onclick="swapDivsOnClick('green')">Click Me</button>
        <h1>Div 2</h1>
    </div>

</body>
<script src="js/scripts.js"></script>

</html>

elmish f# javascript
1 Answers

You don't need onclick="swapDivsOnClick('red')"

Try to use that

var divs = document.getElementsByClassName("square");

if(divs.length) {
    for (let el of divs) {
        el.addEventListener("click", function(e) {
            // here you can remove "inactive" class from all elements
            for (let elem of divs) {
                elem.classList.remove("inactive");
            }
            // and the add "inactive" class to current clicked element
            this.classList.add("inactive");
        })
    }
}

It will remove class "inactive" from all divs, and then add the class to current clicked div.

user_145248720
Related