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VisualizaçõesJS: How to make sure only child div is toggled on click
Given example is working fine but red color is showing under Box2 only.
How to make sure if box1 is clicked then red should show below Box1, if Box2 is clicked box should show below box 2.
function hideshowmenu() {
var element = document.getElementsByClassName("box");
element[0].classList.toggle("bg-red");
}.bg-red {
margin-top: 10px;
background-color: red;
height: 20px;
}<div class="mainmenu " onclick="hideshowmenu()">BOX1</div>
<div id="box" class="box"></div>
<div class="mainmenu " onclick="hideshowmenu()">BOX2</div>
<div id="box" class="box"></div>
only one red should show at one time.
·
Juan Pablo Isaza
3 Respostas
Responde à pergunta0
First remove the id's, you dont need them (and theyre not unique so they arent valid anyways).
Then youll need to iterate trough all your .mainmenu items and bin a click to hide all boxes and open the one right besides the item you clicked.
document.querySelectorAll(".mainmenu").forEach(function(menuElement) {
menuElement.addEventListener("click", function() {
document.querySelectorAll(".box").forEach(function(boxElement) {
boxElement.classList.remove("bg-red");
});
this.nextElementSibling.classList.toggle("bg-red");
});
});.bg-red {
margin-top: 10px;
background-color: red;
height: 20px;
}<div class="mainmenu">BOX1</div>
<div class="box"></div>
<div class="mainmenu">BOX2</div>
<div class="box"></div>
<div class="mainmenu">BOX3</div>
<div class="box"></div>
<div class="mainmenu">BOX4</div>
<div class="box"></div>
<div class="mainmenu">BOX5</div>
<div class="box"></div>
<div class="mainmenu">BOX6</div>
<div class="box"></div>
<div class="mainmenu">BOX7</div>
<div class="box"></div>
·
Juan Pablo Isaza
Relatório
0
You only trigger [0]
I would delegate
I also removed ID since IDs need to be unique
const container = document.getElementById("container");
const boxes = container.querySelectorAll(".box")
container.addEventListener("click", function(e) {
const tgt = e.target;
if (tgt.classList.contains("mainmenu")) {
const thisBox = tgt.nextElementSibling;
boxes.forEach(box => {
if (box != thisBox) box.classList.remove("bg-red");
})
thisBox.classList.toggle("bg-red");
}
}).bg-red {
margin-top: 10px;
background-color: red;
height: 20px;
}<div id="container">
<div class="mainmenu">BOX1</div>
<div class="box"></div>
<div class="mainmenu">BOX2</div>
<div class="box"></div>
</div>
·
Juan Pablo Isaza
Relatório
0
You should use event object to get a target node, and then append div with the class after it. The after function will move the div each time.
<div class="mainmenu" onClick="hideshowmenu(event)">BOX1</div>
<div class="mainmenu" onClick="hideshowmenu(event)">BOX2</div>
const redBox = document.createElement('div');
redBox.classList.add('bg-red');
function hideshowmenu(event) {
const elem = event.target;
elem.after(redBox)
}
·
Juan Pablo Isaza
Relatório
Responde à pergunta