I have a first page, which, onload, shows the default get params.
Page1.html
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script defer src="assets/main.js"></script>
<title>Document</title>
</head>
<body">
<div>
<h1>Nous avons reçu : </h1>
<h2 style="display: inline-block">LOGIN : </h2>
<p style="display: inline-block" id="login"></p>
</div>
<div >
<h2 style="display: inline-block">PASSWORD : </h2>
<p style="display: inline-block" id="password"></p>
</div>
</body>
<script>
</script>
</html>
Page1_main.js
// Version 1
const url = new URL(window.location.href);
const params = url.searchParams;
params.set('LOGIN', 'Licois');
params.append('PASSWORD', 'Johanne')
url.search = params.toString();
window.history.replaceState({}, '', location.pathname + '?' + params);
if (params.has('LOGIN')) {
alert("Licois !");
} else {
alert("Licois est introuvable !")
}
if (params.has('PASSWORD')) {
alert("Johanne !");
} else {
alert("Johanne a disparu !")
}
document.getElementById("login").innerHTML = params.get("LOGIN");
document.getElementById("password").textContent = params.get("PASSWORD");
Result : page1 result
Ok, this is what I wanted.
But then, I have to have another page (with html only), which will send new get parametes to the first page, and shown them there in the HTML and URL. But in this case I cannot show "Joanne" and "Licois" anymore, or show the new params as "param3= " and "param4= ".
Page2_html
<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Exercice 2</title>
</head>
<body>
<form action="Page1.html" method="GET">
<label for="login">Login</label>
<input type="text" name="login" id="login" >
<div><br></div>
<label for="password">Password</label>
<input type="text" type="password" for="password" name="password" id="password">
<div><br></div>
<button type="submit" id="envoyer">Envoyer</button>
</form>
</body>
</html>
Page2_form
I succeed at sending the new params to the first page ("action='Page1.html'").
But I can't manage to show them in the HTML and URL.
No, nevermind, I got it.
Changed Page2.html to
<body>
<form action="Page1.html" method="GET">
<label for="login">Login</label>
<input type="text" name="NEW_LOGIN" id="NEW_LOGIN" >
<div><br></div>
<label for="password">Password</label>
<input type="text" type="password" for="password" name="NEW_PASSWORD" id="NEW_PASSWORD">
<div><br></div>
<button type="submit" id="envoyer">Envoyer</button>
</form>
</body>
</html>
And added this to Page1_main.js
if (params.has('NEW_LOGIN')) {
document.getElementById("login").innerHTML = params.get("NEW_LOGIN");
} else if ((params.has('LOGIN'))) {
document.getElementById("login").innerHTML = params.get("LOGIN");
}
if (params.has('NEW_PASSWORD')) {
document.getElementById("password").innerHTML = params.get("NEW_PASSWORD");
} else if ((params.has('PASSWORD'))) {
document.getElementById("password").innerHTML = params.get("PASSWORD");
}
EZ
Related
I made a username and password validation but although I filled in valid information, it outputs invalid. The input is from <input> tag, with IDs, where the information entered is stored into arrays. Is it data type or syntax issues?
HTML Code 1:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<span>Username</span>
<input id="user" placeholder="enter username">
<br>
<br>
<span>Password</span>
<input id="pass" placeholder="enter password">
<br>
<br>
<button onclick="save()">Enter</button>
<script src="pass.js"></script>
</body>
</html>
HTML Code 2:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<span>Username</span>
<input id="user" placeholder="enter username">
<br>
<br>
<span>Password</span>
<input id="pass" placeholder="enter password">
<br>
<br>
<button onclick="valid()">Validate</button>
<br>
<br>
<h1 id="ans"></h1>
<script src="pass.js"></script>
</body>
</html>
Javascript Code (in a separate file):
var user = [];
var pass = [];
function save( ) {
var x = document.getElementById("user").value;
var y = document.getElementById("pass").value;
user.push(x);
pass.push(y);
console.log(user);
}
function valid() {
var a = document.getElementById("user").value;
var b = document.getElementById("pass").value;
var validationa;
var validationb;
for (let x in user) {
if (x == a) {
validationa = 1;
} else {
validationa = 0;
}
}
for (let y in pass) {
if (y == b) {
validationb = 1;
} else {
validationb = 0;
}
}
if (validationa == 1 && validationb == 1) {
document.getElementById('ans').innerHTML = "valid";
} else {
document.getElementById('ans').innerHTML = "invalid";
}
}
It gives a valid output if the username and password entered is consistent. Both HTML files use the same Javascript source file.
I managed to import a function from my main.js to my signin.js, but for some reason, I get this error on my sign in html page Cannot read properties of null (reading 'addEventListener')
and the function for the signin js is not working and I need to import the function of the main.js as the signin js function relys on the main.js function to work.
HTML 1 - signin js
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="../js/main.js" type="module"></script>
<script src="../js/signin.js" type="module"></script>
<title>Sign in</title>
</head>
<body>
<main>
<form class="form-container">
<input class="email" type="text" placeholder ="Email Address">
<input class="password" type="password" placeholder ="Password">
Sign In
Register
</form>
</main>
</body>
signin.js imported function
//import function
import { validate } from "../js/main.js";
let registration = validate();
let signInbtn = document.querySelector(".sign-in");
signInbtn.addEventListener("click", check);
function check(){
let storedEmail = localStorage.getItem('email');
let storedPw = localStorage.getItem("password");
let email = document.querySelector(".email");
let password = document.querySelector(".password");
if(email.value == storedEmail && password.value == storedPw){
alert("You are logged in")
}
else{
alert("Email or Password is incorrect please check and try again.")
}
}
}
HTML 2 - main.js
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="../css/main.css" />
<script src="../js/main.js" type="module"></script>
<title>Register</title>
</head>
<body>
<main>
<div class="heading">
<h1>User Registration</h1>
</div>
<form action="../index.html" class="form-container">
<ul>
<li><label for="name">Name</label>
<input class="name" type="text" name="name" required />
</li>
<li><label for="surname">Surname</label>
<input class="surname" type="text" name="surname" required />
</li>
<li><label for="phone">Phone</label>
<input class="phone" type="text" name="phone" />
</li>
<li><label for="email">Email</label>
<input class="email" type="text" name="email" required /></li>
<li><label for="password">Password</label>
<input class="password" type="text" name="password" required /></li>
<button class="reg">Register</button>
</ul>
</form>
</main>
</body>
</html>
main.js
let registration = document.querySelector(".reg");
registration.addEventListener("click", validate);
export function validate() {
//get html elements
const formEl = {
id: createId(),
name: document.querySelector(".name").value,
surname: document.querySelector(".surname").value,
phone: document.querySelector(".phone").value,
email: document.querySelector(".email").value,
password: document.querySelector(".password").value,
};
let name = formEl.name;
let surname = formEl.surname;
let email = formEl.email;
let password = formEl.password;
if (!name) {
alert("Please fill in name");
}
if (!surname) {
alert("Please fill in Surname");
}
if (!email) {
alert("Please fill in email");
}
if (!password) {
alert("Please create a password");
}
usersArray.push(formEl);
store();
return formEl;
}
This error I get in the HTML 1 page
for some reason, it is preventing the sign-in function from executing. I am doing it this way for practice purposes, I know local storage is not the best method for this, but I am getting used to how local storage works.
i've been having a problem where i have a form in which several entities within an unordered list are displayed, a name and a button dinamically with vanilla javascript. The problem is, im changing the action value from the html form, from javascript this so i can add an id that i get in a JSON from a http request so i can manipulate a specific object, but it doesnt send the "delete" request, which is actually a post request that im managing from my server side correctly (tested in postman and works like a charm), but when calling from the front-end it stops working. Here are my html and script.
PANEL.HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- <meta http-equiv="Content-Security-Policy" content="default-src https://cdn.example.net; child-src 'none'; object-src 'none'"> -->
<link rel="stylesheet" type="text/css" href="css/panel-style.css">
<script defer src="panel-script.js"></script>
<title>Panel de Control</title>
</head>
<body>
<header>
<img src="assets/mrvapeslogo.png" alt="mrvapes logo">
</header>
<section>
<form id="files-form" accept-charset="UTF-8" enctype="multipart/form-data" action="#" autocomplete="off" method="POST" onsubmit="return validate(this);">
<label for="user">Banners Activos</label><br/>
<ul id="files-container">
</ul>
</form>
<form accept-charset="UTF-8" enctype="multipart/form-data" action="http://localhost:3000/banner" autocomplete="off" method="POST" target="_blank">
<div class="container">
<div class="button-wrap">
<!-- <label class="button" for="upload">Subir</label> -->
<input type="text" id="name" placeholder="Nombre de Archivo" value="" name="name" required>
<input id="image" name="file" value="Subir" placeholder="Subir Archivo" type="file" required>
<button id="upload" value="post-request" type="submit">Enviar</button>
<!-- <input id="upload" type=" submit " value="Enviar " onclick="submit() "> -->
</div>
</div>
</form>
</section>
</body>
PANEL-SCRIPT.JS
const list = document.getElementById("files-container");
const filesForm = document.getElementById("files-form");
fetch('http://localhost:3000/banner')
.then(response => response.json())
.then(json => {
console.log(json)
console.log(json.message)
for (let i = 0; i < json.message.length; i++) {
var item = `<li>${json.message[i].name}
<button id="delete-button" onclick="deleteButton('${json.message[i].name}','${json.message[i]._id}')">Borrar</button>
</li>`;
list.innerHTML += item;
}
});
function deleteButton(name, id) {
var answer = confirm(`Seguro que deseas borrar ${name}?`);
if (answer) {
filesForm.action = `http://localhost:3000/banner/${id}`;
alert('Borrado Correctamente!');
window.location.reload(true);
} else {
validate();
}
}
function validate() {
return false
}
HAPPY HOLIDAYS! :D
-- UPDATE --
When making these changes below to my panel-script.js, my delete function starts working but everytime i cancel the confirm dialog it forwards me to a "cannot post page".
function deleteButton(name, id) {
var answer = confirm(`Seguro que deseas borrar ${name}?`);
if (answer) {
filesForm.action = `http://localhost:3000/banner/${id}`;
alert('Borrado Correctamente!');
// window.location.reload(true);
} else {
// validate();
return false;
}
}
// function validate() {
// return false
// }
I was making simple contact form with email validation, but I ran into an error in my JS code. I was trying to figure out how to fix it but I have no idea what to do.
I was also trying different solutions from other People on StackOverflow but nothing work.
This Is My HTML code :
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../assets/css/style.css">
<title>blackbubble | Contact</title>
</head>
<body>
<form action="#" id="form">
<div class="form_body">
<div class="form_title">
<span></span>
<h1>Get In Touch</h1>
<span></span>
</div>
<div class="user_name">
<input type="name" placeholder="Your name"></input>
<input type="name" placeholder="Second name">
</div>
<div class="email">
<input type="email" id="email" placeholder="Your email address" onkeydown="validation()">
<p class="text"></p>
</div>
<div class="textarea_box">
<textarea placeholder="Message"></textarea>
</div>
<div class="form_footer">
<button class="btn btn_submit">Submit</button>
</div>
</div>
</form>
<script src="../assets/js/main.js"></script>
</body>
</html>
here is my JS Code:
function validation() {
var form = document.getElementById("form");
var email = document.getElementById("email").value;
var text = document.getElementById("text");
var text = document.getElementById("text");
var pattern = /^[^ ]+#[^ ]+\.[a-z]{2,3}$/;
if (email.match(pattern)) {
form.classList.add("valid");
form.classList.remove("invalid");
text.innerHTML = "Your Email Address Is Valid.";
text.style.color = "#00ff00";
}
else {
form.classList.remove("valid");
form.classList.add("invalid");
text.innerHTML = "Please Enter A Valid Email Address.";
text.style.color = "#ff0000";
}
}
There is no element with the id text.
You probably meant to select the element with the class text instead. This can be done with document.querySelector() and the .text CSS selector.
function validation() {
var form = document.getElementById("form");
var email = document.getElementById("email").value;
var text = document.querySelector(".text");
var pattern = /^[^ ]+#[^ ]+\.[a-z]{2,3}$/;
if (email.match(pattern)) {
form.classList.add("valid");
form.classList.remove("invalid");
text.innerHTML = "Your Email Address Is Valid.";
text.style.color = "#00ff00";
} else {
form.classList.remove("valid");
form.classList.add("invalid");
text.innerHTML = "Please Enter A Valid Email Address.";
text.style.color = "#ff0000";
}
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../assets/css/style.css">
<title>blackbubble | Contact</title>
</head>
<body>
<form action="#" id="form">
<div class="form_body">
<div class="form_title">
<span></span>
<h1>Get In Touch</h1>
<span></span>
</div>
<div class="user_name">
<input type="name" placeholder="Your name">
<input type="name" placeholder="Second name">
</div>
<div class="email">
<input type="email" id="email" placeholder="Your email address" onkeydown="validation()">
<p class="text"></p>
</div>
<div class="textarea_box">
<textarea placeholder="Message"></textarea>
</div>
<div class="form_footer">
<button class="btn btn_submit">Submit</button>
</div>
</div>
</form>
</body>
</html>
I am trying to execute a event to verify if 2 input values are equals, but the javascript function dont works
I want to compare the valus of 2 text input box in realtime, like webforms, when the user type into the text box, the web says if the values match or not
This is the HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<h2 id="resultado">Resultado</h2>
<div >
<label id="passwordlabel" for="password1">Contraseña</label>
<input name="password" type="text" id="password" placeholder="Contraseña" required>
<div class="invalid-feedback">
Contraseña no válida.
</div>
</div>
<div >
<label for="password2">Confirme Contraseña</label>
<input name="password2" type="password" id="password2" onclick="pass()" placeholder="Repita contraseña" required>
<div class="invalid-feedback">
Las contraseñas deben ser iguales.
</div>
</div>
<script src="js/password-validation.js"></script>
</body>
</html>
And this is the JS file
function pass() {
'use strict'
result=document.getElementById("resultado");
result.innerHTML = "el java script sirve";
var inputPassword = document.getElementById('password').value;
var inputPassword2 = document.getElementById('password2').value;
if ( inputPassword != inputPassword2) {
result.innerHTML = "values don't match";
}
else{
result.innerHTML = "values match";
}
})
Thank you
1- At the end of your function you have an unnecessary parentheses )
2- If you use use strict you need to declare your variables: var result = ...
3- Probably is conceptually wrong to check the two fields with an onclick on textbox, but this is not a formal error.
function pass() {
'use strict'
var result = document.getElementById("resultado");
result.innerHTML = "el java script sirve";
var inputPassword = document.getElementById('password').value;
var inputPassword2 = document.getElementById('password2').value;
if (inputPassword != inputPassword2) {
result.innerHTML = "values don't match";
} else {
result.innerHTML = "values match";
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<h2 id="resultado">Resultado</h2>
<div >
<label id="passwordlabel" for="password1">Contraseña</label>
<input name="password" type="text" id="password" placeholder="Contraseña" required>
<div class="invalid-feedback">
Contraseña no válida.
</div>
</div>
<div >
<label for="password2">Confirme Contraseña</label>
<input name="password2" type="password" id="password2" onclick="pass()" placeholder="Repita contraseña" required>
<div class="invalid-feedback">
Las contraseñas deben ser iguales.
</div>
</div>
<script src="js/password-validation.js"></script>
</body>
</html>