Can we have code after location.reload(true)? - javascript

I have a function that does a reload from server with:
location.reload(true)
Currently, any code I have after this line is not executed.
I'm curious if there is a way to be able to have more code run after the reload?

The best way to do this would be to write a function that is called if there are certain "GET" variables set and to check them on each run such as mypage.html?reload=true
Or even hash locations: mypage.html#reload
And you can compare like so:
$(document).ready(function () {
if (window.location.hash == '#reload') {
onReload();
}
});
function onReload () {
console.log('test');
}
function reload () {
window.location.hash = 'reload';
window.location.reload();
}
Just call the reload(); function.
Output (in console): test
And then you can just redirect people away from the hash #reload if you don't want your function to run if the page is refreshed again: window.location.hash = '';

why you need execute something after reload the page?
If you need to do something after reload, so you can pass some parameter to the page and check this to execute something additional. You can redirect to the same page and pass a complete url
var url = window.location.href;
url += '&param=1'
window.location.href = url;
So, when your page reload, you can check a parameter by GET and do whatever you want. I hope this trick help you!

________________METHOD 1: WITH PHP_________________
1) reloading with a parameter
2) getting that parameter with PHP
For example:
window.location.href += '&reloading=1';
//it's equivalent to:
//window.location.href = window.location.href + '&reloading=1';
And then:
<?php
if (isset($_GET['reloading'])) {
echo '<script>pageReloaded();</script>';
}
?>
Since PHP will be executed first, that little script (the function call) will be writen and then executed in javascript, so pageReloaded() function will be called.
A full example would be:
<?php if (isset($_GET['reloading'])) echo '<script>pageReloaded();</script>'; ?>
<script>
function reloadNow(){
alert("I'm about to reload");
window.location.href += '&reloading=1';
}
function pageReloaded(){
alert("I've been reloaded!");
}
</script>
<button onclick="reloadNow()">Press to reload</button>
________________METHOD 2: NO PHP, ONLY JAVASCRIPT_________________
Using SessionStorage
1) Set SessionStorage.
2) Reload
3) Get that SessionStorage
For example:
<script>
function reloadNow(){
alert("I'm about to reload");
sessionStorage.setItem('reloading',"true");
window.location.reload(true);
}
//when loading:
if (sessionStorage.getItem('reloading') === "true") {
sessionStorage.clear(); //so it doesn't trigger next time
alert("I've been reloaded!");
}
</script>
<button onclick="reloadNow()">Press to reload</button>

Related

execute js function after reloading page [duplicate]

I'm trying to refresh a page and then run a function once the refresh has been completed. However the code I have now, runs the function and then it only refreshes it, meaning I lose what the function did. Is there a way to solve this?
My code
function reloadP(){
document.location.reload();
myFunction();
}
<button onclick: "reloadP()">Click</button>
You need to call myFunction() when the page is loaded.
window.onload = myFunction;
If you only want to run it when the page is reloaded, not when it's loaded for the first time, you could use sessionStorage to pass this information.
window.onload = function() {
var reloading = sessionStorage.getItem("reloading");
if (reloading) {
sessionStorage.removeItem("reloading");
myFunction();
}
}
function reloadP() {
sessionStorage.setItem("reloading", "true");
document.location.reload();
}
DEMO
function myFunction() {
document.getElementById("welcome").textContent = "Welcome back!";
}
window.onload = function() {
var reloading = sessionStorage.getItem("reloading");
if (reloading) {
sessionStorage.removeItem("reloading");
myFunction();
}
}
function reloadP() {
sessionStorage.setItem("reloading", "true");
document.location.reload();
}
DEMO: https://jsfiddle.net/barmar/5sL3hd74/
Adding to #Barmar answer... In case you'd like to use session storage only when a button in the page is clicked and not when reloading with the browser button, you can use sessionStorage.clear() or sessionStorage.removeItem() once you've executed the function after loading the window.
So, let's say we have:
let restart = sessionStorage.getItem("restart")
Set restart boolean to true as a session storage and reload:
resetBtn.addEventListener("click", () => {
sessionStorage.setItem("restart", "true")
location.reload()
})
Once the window is reloaded we can execute the following function:
window.onload = () => {
if(restart){
// Do something
sessionStorage.clear() // This cleans all the session storage
// If you want to remove ONLY the item from the storage use:
// sessionStorage.removeItem("restart")
}
};
So, if now the user reloads the page with the browser button it will reload with the session storage cleaned. Meaning, no functions will be executed after window load.
In my case i used Barmar's solution. I have a modal popup form, i want to submit the form then automatically refresh the page and finally success message on reloaded page.
var form = document.getElementById('EditUserInfosForm')
form.addEventListener('submit', function () {
sessionStorage.setItem("reloading", "true");
document.location.reload();
})
window.onload = function () {
var reloading = sessionStorage.getItem("reloading");
if (reloading) {
sessionStorage.removeItem("reloading");
$('#success-message-modal').modal('show')
}
}
Probably simplest approach.
HTML Button
Reload button (credits):
<!-- index.html -->
<button onClick="window.location.reload();">Refresh Page</button>
JS Code
Run your code after reload:
// index.js
window.addEventListener("load", (event) => {
YourFunction(); // already declared somewhere else
});
You may not use event variable at all.
https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event#examples

How to get the web page to redirect?

The thing is that is not working is that the page does not redirect to another page, weather if it is wrong or right. I want the page to redirect to another page if the user guesses the generated word right.
you just need to preventDefault the form submission,
use this code to prevent it
document.querySelector('form').addEventListener('submit', (e) => {
e.preventDefault();
})
function myFunction() {
if (document.getElementById("Enter_the_word").value == "KEYBOARD") {
location.href = 'index4.html';
} else {
location.href = "index.html";
}
}
Your code has no issues but please try this reversed condition. If it helps you.
MY EDITED CODE BELOW -----------------
var answerArr = ['KEYBOARD','MATH','FOOTBALL'];
if(answerArr.includes('MATH')){
location.href = 'index4.html';
}else{
location.href = 'index4.html';
}
Like this

Refreshing page after function

Im using php + Jquery.
I want to reload my page at the end of "myFunction".
This is what i have currently:
<script>
function myFuntion(){
var x = prompt("Enter Value", "0"); //This prompts when calling myFunction()
$("#myDiv").load("config/calcX.php"); //This loads"config/calcX.php" in a Div;
location.reload(true); //Does not reload my page...
}
</script>
is there something wrong with myfunction?
There are several ways:
location.reload()
history.go(0)
location.href = location.href
location.href = location.pathname;
location.replace(location.pathname)
location.reload(false)
You can try this
window.location.href = 'yourpage.com';

Refresh the page after first load but not if I refresh it again?

I want to reload my html page just after it loads for the first time, but not to reload if page is refreshed. What I have done is:
window.onload = function() {
if(!window.location.hash) {
window.location = window.location + '#loaded';
window.location.reload();
}
}
But with this approach if I refresh the page it gets reloaded which I don't want. Are there any solutions to avoid this? Thanks in advance.
Use localStorage to achieve this.
Try:
alert("page load")
if(localStorage.getItem("reload") != "1"){
localStorage.setItem("reload","1");
window.location.href = window.location.href;
}
else{
localStorage.removeItem("reload");
}
This will do it, but how do you prevent reloading on all browsers but Firefox?
if (window.location.href.toLowerCase().indexOf("loaded") < 0) {
window.location = window.location.href + '?loaded=1'
}
Try setting the cookie and check

One time page refresh after first page load

I would like to implement a JavaScript code which states this:
if the page is loaded completely, refresh the page immediately, but only once.
I'm stuck at the "only once":
window.onload = function () {window.location.reload()}
this gives a loop without the "only once". jQuery is loaded if this helps.
I'd say use hash, like this:
window.onload = function() {
if(!window.location.hash) {
window.location = window.location + '#loaded';
window.location.reload();
}
}
When I meet this problem, I search to here but most of answers are trying to modify existing url. Here is another answer which works for me using localStorage.
<script type='text/javascript'>
(function()
{
if( window.localStorage )
{
if( !localStorage.getItem('firstLoad') )
{
localStorage['firstLoad'] = true;
window.location.reload();
}
else
localStorage.removeItem('firstLoad');
}
})();
</script>
<script type="text/javascript">
$(document).ready(function(){
//Check if the current URL contains '#'
if(document.URL.indexOf("#")==-1){
// Set the URL to whatever it was plus "#".
url = document.URL+"#";
location = "#";
//Reload the page
location.reload(true);
}
});
</script>
Due to the if condition the page will reload only once.I faced this problem too and when I search ,I found this nice solution.
This works for me fine.
Check this Link it contains a java-script code that you can use to refresh your page only once
http://www.hotscripts.com/forums/javascript/4460-how-do-i-have-page-automatically-refesh-only-once.html
There are more than one way to refresh your page:
solution1:
To refresh a page once each time it opens use:
<head>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
</head>
sollution2:
<script language=" JavaScript" >
<!--
function LoadOnce()
{
window.location.reload();
}
//-->
</script>
Then change your to say
<Body onLoad=" LoadOnce()" >
solution3:
response.setIntHeader("Refresh", 1);
But this solution will refresh the page more than one time depend on the time you specifying
I hope that will help you
<script>
function reloadIt() {
if (window.location.href.substr(-2) !== "?r") {
window.location = window.location.href + "?r";
}
}
setTimeout('reloadIt()', 1000)();
</script>
this works perfectly
Finally, I got a solution for reloading page once after two months research.
It works fine on my clientside JS project.
I wrote a function that below reloading page only once.
1) First getting browser domloading time
2) Get current timestamp
3) Browser domloading time + 10 seconds
4) If Browser domloading time + 10 seconds bigger than current now timestamp then page is able to be refreshed via "reloadPage();"
But if it's not bigger than 10 seconds that means page is just reloaded thus It will not be reloaded repeatedly.
5) Therefore if you call "reloadPage();" function in somewhere in your js file page will only be reloaded once.
Hope that helps somebody
// Reload Page Function //
function reloadPage() {
var currentDocumentTimestamp = new Date(performance.timing.domLoading).getTime();
// Current Time //
var now = Date.now();
// Total Process Lenght as Minutes //
var tenSec = 10 * 1000;
// End Time of Process //
var plusTenSec = currentDocumentTimestamp + tenSec;
if (now > plusTenSec) {
location.reload();
}
}
// You can call it in somewhere //
reloadPage();
i put this inside my head tags of the page i want a single reload on:
<?php if(!isset($_GET['mc'])) {
echo '<meta http-equiv="refresh" content= "0;URL=?mc=mobile" />';
} ?>
the value "mc" can be set to whatever you want, but both must match in the 2 lines. and the "=mobile" can be "=anythingyouwant" it just needs a value to stop the refresh.
Use window.localStorage... like this:
var refresh = window.localStorage.getItem('refresh');
console.log(refresh);
if (refresh===null){
window.location.reload();
window.localStorage.setItem('refresh', "1");
}
It works for me.
After </body> tag:
<script type="text/javascript">
if (location.href.indexOf('reload')==-1)
{
location.href=location.href+'?reload';
}
</script>
You can make one verable once = false then reload your page with if else like if once == false reload page an make once true.
You'd need to use either GET or POST information. GET would be simplest. Your JS would check the URL, if a certain param wasn't found, it wouldn't just refresh the page, but rather send the user to a "different" url, which would be the same URL but with the GET parameter in it.
For example:
http://example.com -->will refresh
http://example.com?refresh=no -->won't refresh
If you don't want the messy URL, then I'd include some PHP right at the beginning of the body that echos a hidden value that essentitally says whether the necessary POST param for not refreshing the page was included in the initial page request. Right after that, you'd include some JS to check that value and refresh the page WITH that POST information if necessary.
Try with this
var element = document.getElementById('position');
element.scrollIntoView(true);`
Please try with the code below
var windowWidth = $(window).width();
$(window).resize(function() {
if(windowWidth != $(window).width()){
location.reload();
return;
}
});
Here is another solution with setTimeout, not perfect, but it works:
It requires a parameter in the current url, so just image the current url looks like this:
www.google.com?time=1
The following code make the page reload just once:
// Reload Page Function //
// get the time parameter //
let parameter = new URLSearchParams(window.location.search);
let time = parameter.get("time");
console.log(time)//1
let timeId;
if (time == 1) {
// reload the page after 0 ms //
timeId = setTimeout(() => {
window.location.reload();//
}, 0);
// change the time parameter to 0 //
let currentUrl = new URL(window.location.href);
let param = new URLSearchParams(currentUrl.search);
param.set("time", 0);
// replace the time parameter in url to 0; now it is 0 not 1 //
window.history.replaceState({}, "", `${currentUrl.pathname}?${param}`);
// cancel the setTimeout function after 0 ms //
let currentTime = Date.now();
if (Date.now() - currentTime > 0) {
clearTimeout(timeId);
}
}
The accepted answer uses the least amount of code and is easy to understand. I just provided another solution to this.
Hope this helps others.
React Hook worked for me.
import { useEffect, useState } from 'react';
const [load, setLoad] = useState(false);
window.onload = function pageLoad() {
if (load) {
window.location.reload(true);
setLoad(false);
}
};
nothing work for me perfectly except this, -added to my JavaScript file-:
function LoadOnce() {
if (localStorage.getItem('executed') == 'false') {
window.location.reload()
localStorage.setItem('executed', true)
}
}
setTimeout(function () {
LoadOnce()
}, 100)
and in the previous page I wrote:
localStorage.setItem('executed', false)
I got the Answer from here and modified it.This is the perfect solution for me.
var refresh = window.localStorage.getItem('refresh');
console.log(refresh);
setTimeout(function() {
if (refresh===null){
window.location.reload();
window.localStorage.setItem('refresh', "1");
}
}, 1500); // 1500 milliseconds = 1.5 seconds
setTimeout(function() {
localStorage.removeItem('refresh')
}, 1700); // 1700 milliseconds = 1.7 seconds
var foo = true;
if (foo){
window.location.reload(true);
foo = false;
}
use this
<body onload = "if (location.search.length < 1){window.location.reload()}">
Use rel="external"
like below is the example
<li>Home</li>

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