I think I'm close to getting this right but I can't figure out how to change the colour of my submit button when the user hovers over it, I'm very new too javascript so any help would be greatly appreciated
here is my code:
<html>
<head>
<title>JavaScript</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script>
function getName(){
var name;
name = window.prompt("Enter your name", "");
greeting = "User Information for " + name;
var txt= document.getElementById('txtWelcome');
txt.innerHTML=greeting;
}
function over() {
document.getElementById("Submit").style.background = 'Blue';
}
function out() {
document.getElementById("Submit").style.background = 'Yellow';
}
</script>
</head>
<body onload="getName()">
<form class="basic_form">
<h1 id="txtWelcome"></h1>
<p>Please input your login details</p>
<fieldset>
<label class="form_labels">Username:</label>
<input class="form_fields" type="text" name="username"><br>
<label class="form_labels">E-Mail:</label>
<input class="form_fields" type="email" name="email"><br>
<label class="form_labels">Password:</label>
<input class="form_fields" type="password" name="password">
<input class="form_buttons" type="Submit" value="Submit"><br>
</fieldset>
</form>
</body>
Here's the javascript solution:
var submitButton = document.getElementById('submit');
submitButton.addEventListener('mouseover', function() {
this.style.backgroundColor='blue';
});
submitButton.addEventListener('mouseout', function() {
this.style.backgroundColor='yellow';
});
https://jsfiddle.net/hsxdkkp6/
But why not just use css?
input[type=submit]:hover {
background-color: red;
}
https://jsfiddle.net/jkkj8dvt/
Related
I'm trying to make a mailto: link change based on a text input and a button.
I managed to make it work without a href, with just plain text from a paragraph, but i can't manage to make it work on the href.
I get either [object HTMLInputElement] or undefined
HTML
<input type="text" id="email_input"><br>
<span id="links"><a id="email">email</a></span><br>
<input type="button" id="btn" value="Submit"><br>
JAVASCRIPT
var emailIN = document.getElementById('email_input');
var emailOUT = document.getElementById('email');
var emailLink = "mailto:"+emailOUT;
btn.onclick = function(){
/* addressOUT.textContent = addressIN.value; */
/* emailOUT.setAttribute("href",emailIN); */
/* emailOUT.textContent = "mailto:"+emailIN.value; */
/* $("a#email").attr('href','mailto:'+emailIN); */
/* document.querySelector("#email").href=emailLink; */
document.getElementById("email").value = "mailto:"+emailIN
emailOUT.href = "mailto:"+emailIN;
}
Here is an example.
document.getElementById('btn').addEventListener('click', function() {
const emailInput = document.getElementById('email_input');
const emailLink = document.getElementById('email');
const href = emailInput.value != '' ? 'mailto:' + emailInput.value : '';
if (href.length > 0) {
emailLink.setAttribute('href', href);
console.log(`Link href is change to ${href}`);
}
});
<!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 href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
<div class="container">
<div class="my-5">
<div class="mb-3">
<label for="email_input" class="form-label">Email address</label>
<input class="form-control" id="email_input" placeholder="name#example.com" />
</div>
<div class="mb-3">
<a id="email" href="">Email Link</a>
</div>
<div class="mb-3">
<button type="button" id="btn" class="btn btn-primary btn-md">Submit</button>
</div>
</div>
</div>
</body>
</html>
I am trying to write a html/js script to validate a simple login page and on successful login, to redirect to the homepage. What I have so far is not doing the intended when I hit the submit button. Can someone please help? It is much appreciated. My code is:
<!doctype html>
<!-- This is is the main start page saved in index.html -->
<html lang="en-US">
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<body>
<h2>Login details</h2>
<form name="login" action="return validateForm()" action="http://localhost:8080/index.html" method="post">
<fieldset>
<label for="username">Username:</label><br>
<input type="text" id="username" name="username"><br>
<label for="password">Password:</label><br>
<input type="password" id="password" name="password"><br><br>
<input type="submit" value="Submit">
</fieldset>
</form>
</body>
</html>
<script>
function validateForm() {
var un = document.login.username.value;
var pw = document.login.password.value;
var username = "username"
var password = "password"
if ((un == username) && (pw == password)) {
return true;
}
else {
alert ("Login was unsuccessful, please check your username and password");
return false;
}
}
</script>
With the input from Don't Panic and Ahmed I have corrected the code:
<!doctype html>
<!-- This is is the main start page saved in index.html -->
<html lang="en-US">
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<body>
<h2>Login details</h2>
<form name="login" onsubmit="return validateFormOnSubmit()" action="http://localhost:8080/index.html" method="post">
<fieldset>
<label for="username">Username:</label><br>
<input type="text" id="username" name="username"><br>
<label for="password">Password:</label><br>
<input type="password" id="password" name="password"><br><br>
<input type="submit" value="Submit">
</fieldset>
</form>
</body>
</html>
<script>
function validateFormOnSubmit() {
var un = document.login.username.value;
var pw = document.login.password.value;
var username = "username"
var password = "password"
if ((un == username) && (pw == password)) {
return true;
}
else {
alert ("Login was unsuccessful, please check your username and password");
return false;
}
}
</script>
JavaScript codes and HTML codes
I'm trying to put a generated value of the qr code a input text to be save in my SQLite database can't pust the darn value of the qr code
var resultDiv;
document.addEventListener("deviceready", init, false);
function init() {
document.querySelector("#startScan").
addEventListener("touchend", startScan, false);
resultDiv = document.querySelector("#results");//works in <p id="results"></p>
resultDiv = document.querySelector('#text4');//wont work at all <input id="text4" type="text" placeholder="Book Info"/>
}
function startScan() {
cordova.plugins.barcodeScanner.scan(
function (result) {
var s = result.text.split('|');
result.format;
result.cancelled;
resultDiv.innerHTML = s;
},
function (error) {
alert("Scanning failed: " + error);
}
);
}
JavaScript codes and HTML codes
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>qrBorrowers</title>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<script type="text/javascript" src="cordova.js"></script>
<nav>
<div class="topnav">
Add
Borrow
Return
QR code
</div>
</nav>
<Label>
<h1> Borrow a Book </h1>
</Label>
<div class="borrow">
<input id="text1" type="text" placeholder="Borrower Number" onfocus="this.value=''"/>
<input id="text2" type="text" placeholder="Borrower Last Name" onfocus="this.value=''" />
<input id="text3" type="text" placeholder="Borrower First Name" onfocus="this.value=''" />
<input id="text4" type="text" placeholder="Book Info"/>
<input id="text6" type="date" placeholder="Date Borrowed" />
<br>
</div>
<div class="borrow">
<p id="results"></p>
<button id="startScan">Start Scan</button>
<button id="savedb">Save </button>
</div>
<script type="text/javascript" src="js/scanQR.js"></script>
</body>
</html>
With inner HTML it will not going to save your generated QR code to input box. You need to change the innerHTML to value to save the value in input box such that you can use that when form submit as value to save in database.
var resultDiv;
document.addEventListener("deviceready", init, false);
function init() {
document.querySelector("#startScan").
addEventListener("touchend", startScan, false);
resultDiv = document.querySelector("#results");//works in <p id="results"></p>
resultDiv = document.querySelector('#text4');//wont work at all <input id="text4" type="text" placeholder="Book Info"/>
}
function startScan() {
cordova.plugins.barcodeScanner.scan(
function (result) {
var s = result.text.split('|');
result.format;
result.cancelled;
resultDiv.value = s;
},
function (error) {
alert("Scanning failed: " + error);
}
);
}
JavaScript codes and HTML codes
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>qrBorrowers</title>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<script type="text/javascript" src="cordova.js"></script>
<nav>
<div class="topnav">
Add
Borrow
Return
QR code
</div>
</nav>
<Label>
<h1> Borrow a Book </h1>
</Label>
<div class="borrow">
<input id="text1" type="text" placeholder="Borrower Number" onfocus="this.value=''"/>
<input id="text2" type="text" placeholder="Borrower Last Name" onfocus="this.value=''" />
<input id="text3" type="text" placeholder="Borrower First Name" onfocus="this.value=''" />
<input id="text4" type="text" placeholder="Book Info"/>
<input id="text6" type="date" placeholder="Date Borrowed" />
<br>
</div>
<div class="borrow">
<p id="results"></p>
<button id="startScan">Start Scan</button>
<button id="savedb">Save </button>
</div>
<script type="text/javascript" src="js/scanQR.js"></script>
</body>
</html>
To save the value in input box should not use "resultDiv.innerHTML = s;"
Rather you should use "resultDiv.value = s" which will save your code to input box which you can use to save in SQLite Database.
I want display the form data to new tab using JavaScript only. This is not proceeding my task. How to achieve this?
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<script language="JavaScript">
function showInput() {
var message_entered = document.getElementById("user_input").value;
document.getElementById('display').innerHTML = message_entered;
}
</script>
</head>
<body>
<form>
<label><b>Enter a Message</b></label>
<input type="text" name="message" id="user_input">
</form>
<input type="submit" onclick="showInput();"><br />
<label>Your input: </label>
<p><span id='display'></span> </p>
</body>
</html>
var data = "<p>This is new tab'</p><br/>"+message_entered;
newWindow = window.open("data:text/html," + encodeURIComponent(data),
"_blank", "width=200,height=100");
newWindow.focus();
DEMO
I am working on forwarding data from the current page to the same next page i.e. whenever the page is loaded again, the code checks if there is any such storage, if it is then it loads the values in text box. I am not able to get it to work Below is the code -
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript">
function values()
{
if(localStorage.getItem(pranav))
{
document.getElementById(FName).innerText= sessionStorage.getItem(pranav);
document.getElementById(OName).innerText= sessionStorage.getItem(k);
}
else
{
sessionStorage.setItem("pranav", "P");
sessionStorage.setItem("k", "P");
return;
}
}
</script>
</head>
<body>
<form name="myform" action="Idea.html" onload="values(this.form)">
<label>Please Enter Your Full Name = </label><input type="text" name="FName" id="FName" />
<label>Please Enter Your Current Organization</label><input type="text" name="OName" id="OName" />
<input type="submit" value="Submit" onclick="values(this.form)" />
</form>
</body>
</html>
Kindly help me as to why this is not working?
You haven't declared the pranav and k variables you used. Also when you are assigning a value to an input field you should use the .value property instead of .innerText.
Also you might consider splitting your code in 2 functions:
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript">
function loadValues() {
var data = localStorage.getItem('data');
if(data) {
data = JSON.parse(data);
document.getElementById('FName').value = data.firstName;
document.getElementById('OName').value = data.lastName;
}
}
function saveValues() {
var data = {
firstName: document.getElementById('FName').value,
lastName: document.getElementById('OName').value
};
localStorage.setItem('data', JSON.stringify(data));
}
</script>
</head>
<body onload="loadValues()">
<form name="myform" action="Idea.html" onsubmit="saveValues()">
<label>Please Enter Your Full Name = </label>
<input type="text" name="FName" id="FName" />
<label>Please Enter Your Current Organization</label>
<input type="text" name="OName" id="OName" />
<input type="submit" value="Submit" />
</form>
</body>
</html>