botones donde solo uno está activado

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Wed Dec 08 2021 15:51:33 GMT+0000 (Coordinated Universal Time)

Saved by @samn #javascript #eventos #delegación

<div class="box">
    <div class="cambio"><a class="enlase" href="#">Inicio</a></div>
    <div class="cambio"><a class="enlase" href="#">Horario</a></div>
    <div class="cambio"><a class="enlase" href="#">Blog</a></div>
</div>


// css 
.box{
width: 60vw;
height: 30px;
background: gray;
display: flex;
justify-content: space-around;
}
.cambio{
    height: 100%;
    background: blue;
}
.cambio a{
    display: inline-block;
    width: 100px;
    height: 100%;
    color: white;
}
.active a{
    background: red;
}
.active{
    background:red;
}

// javascript

//metodo (1): se señala al elementi que dispara con la i del for
//            la clase active sirve como puente, sin nesecidad que este en el css

let cambio = document.querySelectorAll(".cambio");
for(let i = 0; i < cambio.length; i++) {
    cambio[i].addEventListener("click", () =>{
	cambio.forEach(link => {
	    link.classList.remove("active");
	});
	cambio[i].classList.add("active");
    });
};

// metodo(2): delegación de evento e.target detecta al elemento que dispara
//            la clase active se incluye en el css 
//            se trabaja solo con enlase.

let enlase = document.querySelectorAll(".enlase");
enlase.forEach(lin => {
    lin.addEventListener("click", (e) => {
    enlase.forEach(link => { // es el enlase cuando  ya tiene el evento click
	link.classList.remove("active");
    });
    e.target.classList.add("active"); // detecta donde se iso click(elemento)
    });
});

COPY

-El razonamiento principal es separar el elemento que dispara de los demás eventos que burbujean. - Lo mismo se pudo hacer con for aunque no se uso el evento burbuja.

https://uniwebsidad.com/tutoriales

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efectos-botones

@samn

botones donde solo uno está activado mover un elemento junto al mouse, dentro de un div (eventos de mouse) Mover elemento dentro de un div junto al mouse(EN VARIOS BOTONES)

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botones donde solo uno está activado

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