<button id="showlinks" onclick="myFunction">show</button>
<div id="buttonlinks"></div>
function myFunction() {
var button = document.createElement("button");
document.getElementById("buttonlinks").appendChild(button);
}
I used This Code to create buttons on clicking a button. when clicking the show button the buttons appear but after refresh they are gone.
can I store the buttons with localStorage?
You can store the information about your buttons in the localStorage whenever you create a button, and add an eventListener to window.onload to read the buttons from localStorage and append it to the page when page has loaded, in the below exmpale to keep it simple, I just store the length of buttons.
<button id="showlinks" onclick="myFunction">show</button> <div id="buttonlinks"></div>
js:
let buttonsLength = 0;
document.getElementById('showlinks').addEventListener('click', function () {
createButton();
buttonsLength++;
localStorage.setItem('buttonsLength', buttonsLength)
});
function createButton() {
var button = document.createElement('button');
button.innerHTML = 'click me';
document.getElementById('buttonlinks').appendChild(button);
}
window.addEventListener('load', (event) => {
buttonsLength = Number(localStorage.getItem('buttonsLength')) || 0;
for (let i = 0; i < buttonsLength; i++) {
createButton();
}
});
const showlinks = document.getElementById('showlinks')
showlinks.addEventListener("click", function () {
localStorage.setItem("showClicked", true)
displayButtonInDom()
})
function displayButtonInDom() {
const showClicked = localStorage.getItem("showClicked")
if (showClicked) {
const button = document.createElement("button");
button.innerText = "click me"
document.getElementById("buttonlinks").appendChild(button);
}
}
displayButtonInDom()<button id="showlinks">show</button>
<div id="buttonlinks"></div>Foreache button created you have to add the button information to the localstorage. And on page load you execute an init function that rebuild all button created from the localstorage
<button id="showlinks" onclick="createButton('')">show</button>
<div id="buttonlinks"></div>
<script>
function Initbutton() {
//on load check if the button has been already add using the localStorage
var buttons = getButtonInformationFromLocalStorage();
if(buttons != null){
buttons.forEach(function(btnName){
createButton(btnName);
})
}
}
// fo the purpose of having different button name
// i have picket this function here https://www.codegrepper.com/code-examples/javascript/find+random+name+javascript
function getRandomString(length) {
var randomChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var result = '';
for ( var i = 0; i < length; i++ ) {
result += randomChars.charAt(Math.floor(Math.random() * randomChars.length));
}
return result;
}
function createButton(btnName){
if(btnName == undefined || btnName == ""){
btnName = "button" + getRandomString(10);
updateButtonInformationToLocalStorage(btnName);
}
var button = document.createElement("button");
button.innerHTML = btnName;
document.getElementById("buttonlinks").appendChild(button);
}
function updateButtonInformationToLocalStorage(name){
var lstrg = localStorage.getItem("alreadyaddbuttontobuttonlinks");
if(lstrg == null){
localStorage.setItem("alreadyaddbuttontobuttonlinks", name);
return name;
}else{
var nLstrg = lstrg + "|" + name;
localStorage.setItem("alreadyaddbuttontobuttonlinks", nLstrg);
return nLstrg;
}
}
function getButtonInformationFromLocalStorage(){
var lstrg = localStorage.getItem("alreadyaddbuttontobuttonlinks");
if(lstrg == null){
return null;
}else{
return lstrg.split("|");
}
}
window.onload = Initbutton();
</script>