Get id of child elements-CodePudding

I need to get the id from all the child elements, which are in the parent class = "demo", but if the parent class = "demo" has id = "simone" I don't need to get the child id. How to achieve this?

If is simone, don't get children's id, else get children's id?

       var name;
     var divsname = document.querySelectorAll('.demo *');
     divsname.forEach(function(div){
        
        if (div.hasAttribute("id")) {
        name  = "Name: " div.getAttribute("id") ", "; 
        }else{
            
        }
        document.getElementById("get-demo").innerHTML = name;
    console.log(name);
     });

<div id="maja" ><div id="maja-child"></div></div>
<div id="alex" ><div id="alex-child"></div></div>
<div id="simone" ><div id="simone-child"></div></div>
<div id="pit" ><div id="pit-child"></div></div>

<div id="get-demo"></div>

CodePudding user response：

welcome to stackoverflow borma ;)

just use parentElement.getAttribute("id"),

ParentElement() will retrun parent of child element you can use exeption

div.parentElement.getAttribute("id") !== "simone"

will return false if id is simone.

Example

if (div.hasAttribute("id") && div.parentElement.getAttribute("id") !== "simone") {
      name  = "Name: " div.getAttribute("id") ", "; 
}

This full script

window.onload = () => 
{
var name = '', divsname = document.querySelectorAll('.demo *');

 divsname.forEach(function(div){
    if (div.hasAttribute("id") && div.parentElement.getAttribute("id") !== "simone") {
      name  = "Name: " div.getAttribute("id") ", "; 
    } 
    document.getElementById("get-demo").innerHTML = name;
 });
}

CodePudding user response：

You can use the css :not selector and exclude the id simone.

       var name;
     var divsname = document.querySelectorAll('.demo:not(#simone) *');
     divsname.forEach(function(div){
        
        if (div.hasAttribute("id")) {
        name  = "Name: " div.getAttribute("id") ", "; 
        }else{
            
        }
        document.getElementById("get-demo").innerHTML = name;
    console.log(name);
     });

<div id="maja" ><div id="maja-child"></div></div>
<div id="alex" ><div id="alex-child"></div></div>
<div id="simone" ><div id="simone-child"></div></div>
<div id="pit" ><div id="pit-child"></div></div>

<div id="get-demo"></div>

CodePudding user response：

You can use @jkoch answer or if you need to do something with any div with id 'simone' you can filter it within the forEach callback function. The name variable I set to a blank "" to avoid getting 'result' in the name variable.

var name = ""
     var divsname = document.querySelectorAll('.demo');
     divsname.forEach(function(div){
        
        if (div.id !== 'simone') {
        name  = "Name: " div.id ", "; 
        }else{
            //code if you want to do something with simone id
        }
        document.getElementById("get-demo").innerHTML = name;
            console.log(name);
     });

CodePudding user response：

This should work.

document.querySelectorAll(".demo").forEach((item) => {
  if (item.id !== "simone") {
    console.log(item.firstChild.id);
  }
});

    <div id="maja" ><div id="maja-child"></div></div>
    <div id="alex" ><div id="alex-child"></div></div>
    <div id="simone" ><div id="simone-child"></div></div>
    <div id="pit" ><div id="pit-child"></div></div>

    <div id="get-demo"></div>