Created
May 13, 2024 06:06
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
<title>Delete Boxes</title> | |
<style>.box { width:100px; height:100px; background-color:lightblue; margin:10px; display:inline-block; text-align:center; line-height:100px; }</style> | |
</head> | |
<body> | |
<select id="boxSelect"></select> | |
<button onclick="deleteBox()">Delete Box</button> | |
<button onclick="createNewBox()">Create New Box</button> | |
<label for="deleteAscending">Ascending Order</label> | |
<input type="checkbox" id="deleteAscending"> | |
<div id="boxContainer"></div> | |
<script> | |
class DataIdGenerator{constructor(){this.counter=1}generateId(){let e=this.counter++,t=this.formatDataId(e);return"data-id-"+t}formatDataId(e){return String(e).padStart(2,"0")}};const dataIdGenerator=new DataIdGenerator;function createBox(e){const t=document.getElementById("boxContainer"),n=document.createElement("div");n.setAttribute("class","box"),n.setAttribute("data-id",e),n.textContent=e,t.appendChild(n);const o=document.getElementById("boxSelect"),a=document.createElement("option");a.value=e,a.textContent=e,o.appendChild(a)}function createNewBox(){let e;do{e=dataIdGenerator.generateId()}while(document.querySelector(`.box[data-id="${e}"]`));createBox(e),reorderDropdown()}for(let e=0;e<10;e++){createNewBox()}function deleteBox(){const e=document.getElementById("boxSelect"),t=document.getElementById("boxContainer"),n=e.value;if(""!==n){const o=document.querySelector(`.box[data-id="${n}"]`);o?(o.parentNode.removeChild(o),e.remove(e.selectedIndex)):alert("Box with specified data-id not found!")}else alert("Please select a box to delete!"),reorderDropdown()}function reorderDropdown(){document.getElementById("boxSelect").selectedIndex=0;const e=document.getElementById("boxSelect"),t=document.getElementById("deleteAscending").checked,n=Array.from(e.options);n.sort((e,o)=>t?e.value.localeCompare(o.value):o.value.localeCompare(e.value)),e.innerHTML="",n.forEach(t=>{e.appendChild(t)})}document.getElementById("deleteAscending").addEventListener("change",()=>{document.getElementById("boxSelect").selectedIndex=0;reorderDropdown()});document.getElementById("boxSelect").selectedIndex=0; | |
</script> | |
</body> | |
</html> |
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