I can't redirect to the next page. Please help me. I have a project due tomorrow. I've been trying for more than five hours. Please help me. I'm begging you guys. I don't know what I'm doing wrong. I'm very new to Javascript.
Please tell me what I'm doing wrong
document.getElementById("one").onclick = function() {
location.href = "lessons.html"
};
<!DOCTYPE html>
<html>
<head>
<title> MaxFluency Tutorials Page</title>
<meta name="viewport" content="width=device-width">
<link rel="stylesheet" href="tutorial.css">
</script>
</head>
<body>
<header>
<div class="topbar">
<center>
<p> Tutorials</p>
</center>
</header>
</div>
<div class="lessons">
<center>
<button class=les id=one type="button"> <h3> Lesson 1: </h3> Nature of Communication </button>
<button class=les id="2nd"> <h3>Lesson 2:</h3></button>
<button class="les" id="3rd"> <h3>Lesson 3:</h3></button>
</center>
</div>
<div class="nav">
<center><button class="loc"> Home</button>
<button class="loc"> Highscores </button>
<button class="loc"> Support us!</button>
</center>
</div>
<script type="text/Javascript" src="tutorials.js">
</script>
</body>
</html>
Your HTML is quite malformed, with some opening tags not closed anywhere, closing tags that do not have any matching tag, etc... This needs some tidying.
Also, if this Javascript code is in an external file, make sure it is wrapped in an onload event (making sure that all HTML elements actually loaded before calling document.getElementById). Finally, note the semicolon placement. You should place the semicolon after the statement, not after the function's ending }!
Side note: Why re-inventing the wheel when you can simply use an anchor tag (<a>) for redirecting?
onload = function() {
document.getElementById("one").onclick = function () {
console.log("clicked!");
location.href = "lessons.html";
}
}
<!DOCTYPE html>
<html>
<head>
<title> MaxFluency Tutorials Page</title>
<meta name="viewport" content="width=device-width">
<link rel="stylesheet" href="tutorial.css">
</head>
<body>
<header>
<div class="topbar">
<center> <p> Tutorials</p> </center>
</div>
</header> <!-- this closing tag was missing -->
<div class="lessons">
<center>
<button class=les id=one type="button" > <h3> Lesson 1: </h3> Nature of Communication </button>
<button class=les id="2nd"> <h3>Lesson 2:</h3></button>
<button class="les" id="3rd"> <h3>Lesson 3:</h3></button>
</center>
</div>
<div class="nav">
<center><button class="loc"> Home</button>
<button class="loc"> Highscores </button>
<button class="loc"> Support us!</button>
</center>
</div>
<script type="text/Javascript" src="tutorials.js"></script>
</body>
</html>
1) there is a lonely closing script tag in the head section.
2) your closing header and div tags before .lessons are in reverse order
3) Here is a fiddle that seems to be working. Button goes to a 404 just because the lessons.html doesn't exist here.
I also added a slash for a relative path. I assume you are probably working from a single root directory given that it is a tutorial but I could be wrong there.
location.href = "/lessons.html";
https://jsfiddle.net/y7txje5c/1/
Related
Here is my code: When I click on one button, it hide all links. And show on one button also. Links and titles are lists which change their lengths in python. I want to show the link of only button which is clicked not all. I have also tried using div but also same problem.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Python Jobs</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma#0.9.3/css/bulma.min.css">
<section class="hero is-dark is-bold">
<div class="hero-body">
<p class="title">
Job Title
</p>
<p class="subtitle">
Python jobs
</p>
</div>
</section>
<script>
$(document).ready(function(){
$("#hide").click(function(){
$("a").hide();
});
$("#show").click(function(){
$("a").show();
});
})
</script>
</head>
<body>
<section class="section">
<div class="container">
{% for i in range(0, len-1) %}
<h3>{{i+1}}. {{title[i]}}</h3>
<a href={{links[i]}}>{{links[i]}}</a>
<button id="show">Show</button>
<button id="hide"> Hide</button>
<br>
{% endfor %}
</div>
</section>
</body>
</html>
There are multiple problem in your code.
id must be unique so use class instead of id.
Wrap your each heading and link with container. In your case move your div inside for loop.
Based upon your button click find your heading and link to show / hide.
Initially hide your heading and link (It's depend upon your logic, how you want to present UI)
Example:
$(".hide").click(function() {
$(this).parent('div').find('a ,h3').hide();
});
$(".show").click(function() {
$(this).parent('div').find('a ,h3').show();
});
a,
h3 {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<h3>Title1</h3>
Link1
<button class="show">Show</button>
<button class="hide"> Hide</button>
</div>
<div class="container">
<h3>Title2</h3>
Link2
<button class="show">Show</button>
<button class="hide"> Hide</button>
</div>
I have a script that appends a piece of HTML 10 times
$('#main').append(`
<div id="box${i}" class="divMusica">
<div class="todas">
<img id= "img${i}" src="">
</div>
<div class="divTexto">
<h2>Nome da banda: <p id="banda${i}"></p></h2>
<h2>Nome da música: <p id="musica${i}"></p></h2>
<a class="referencia" id ="url${i}" href="" target="_blank" class="button">Ir para last.fm </a>
<button button type="button" class="add-music-button" data-ref="${i}" onclick="add_to_storage()">Adicionar</button>
</div>
</div>`);
And I'm trying to get data-ref to the sessionStorage with this code let musicRef = $(this).data("ref"); but it returns undefined. Can someone tell me why? I already tried to put ${i} without quotes too.
You are trying to add HTML with Javascript function append() before this element has been registered by the DOM
You can't apply normal onclick event for this. You have to do Event Delegation. Then you will be able to catch the id or class of that.
This event handler is bound to an element higher up the DOM tree (in this case, the document) and will be executed when an event reaches that element having originated on an element matching the selector.
See this answer to know the difference. Link
<!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>
<div id="main"></div>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
let i = 1;
$('#main').append(`
<div id="box${i}" class="divMusica">
<div class="todas">
<img id= "img${i}" src="">
</div>
<div class="divTexto">
<h2>Nome da banda: <p id="banda${i}"></p></h2>
<h2>Nome da música: <p id="musica${i}"></p></h2>
<a class="referencia" id ="url${i}" href="" target="_blank" class="button">Ir para last.fm </a>
<button button type="button" class="add-music-button" data-ref="${i}" id="clickButtonID${i}">Adicionar</button>
</div>
</div>`);
$(document).on('click', '#clickButtonID' + i, function(){
alert($(this).data("ref"));
})
</script>
</body>
</html>
The problem is you are missing pass this context
onclick="add_to_storage()" ---> onclick="add_to_storage(this)"
function add_to_storage(event){
var value = $(event).data('ref');
console.log(value);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button type="button" class="add-music-button" data-ref="123" onclick="add_to_storage(this)">Adicionar</button>
More detailed explanation
Because the value of this is not set by the call, this will default to the global object, which is window in a browser.
Read this post to know more about this keyword in Javascript.
I'm learning Javascript and now I'm making to-do list.I've finished the basic one but I want to add the delete button which delete all the checked lists to my to-do list.
I've tried some ways that I came up with and they all failed and I cannot find the answer by googling.
How can I do this ? If there is someone who know, please teach me . I'd appreciated if you could show me how.
this is my code ↓ the error happened saying cannot read property 'parentElement' of null at Object.deleteAll
deleteAll: function() {
let taskListItem, checkBox, checkBoxParent;
for (i=0; i<this.taskListChildren.length; i++){
taskListItem = this.taskListChildren[i];
checkBox = taskListItem.querySelector('input[type = "checkbox"]:checked');
checkBoxParent = checkBox.parentElement;
checkBoxParent.remove();
}
document.getElementById('deleteChecked').addEventListener('click', () => {
tasker.deleteAll();
});
🙏
// this is my HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>To Do List</title>
<link rel="stylesheet" href="css/styles.css">
<link href="https://use.fontawesome.com/releases/v5.6.1/css/all.css" rel="stylesheet">
</head>
<body onLoad = "tasker.construct();">
<div class="tasker" id="tasker">
<div class="error" id="error">Please enter a task</div>
<div class="tasker-header" id="tasker-header">
<input type="text" id="input-task" placeholder ="Enter a task">
<button id="add-task-btn"><i class="fas fa-plus"></i></button>
</div>
<div class="tasker-body">
<ul id="tasks">
</ul>
</div>
<button id="deleteChecked">Delete</button>
</div>
<script src="js/main.js"></script>
</body>
</html>
You can use the jQuery library and solve it as follows.
Step 1) Define in your html button element:
<button id="button" onclick="reset()"> RESET </button>
Step 2) define the 'reset ()' function, like this
function reset()
{
$("input:chceckbox").removeAttr("chcecked");
}
Good luck!!
I have a webpage that links some javascript via tags. The script is amazon-localiser.js which will change an amazon link to one appropriate for the visitor. e.g. an Amazon.com link will swap to amazon.co.uk for a UK visitor or Amazon.de for a german visitor.It also appends to the link the relevant amazon affiliate link.
When the user lands on the page they click through some options (javascript) however by the time you reach an amazon link the page must be refreshed for the amazon-localiser.js script to work. I have tried using a page refresh in HTML but this sends me back to the very beginning of the questions. How do I reload the javascript without affecting the users location on the site?
The site is www.wfbsir.com, if you select "Scifi" then "Maybe" you will get to an amazon.com link, if you hover over it you will see it links to amazon.com if you refresh the page it will show you the link to your local store with an affiliate link appended.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>What book should I read?</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="manifest" href="/manifest.json">
<meta name="msapplication-TileColor" content="#ffffff">
<meta name="msapplication-TileImage" content="/ms-icon-144x144.png">
<meta name="theme-color" content="#ffffff">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<link rel="stylesheet" href="app.css" />
</head>
<body>
<div class="wrapper">
<div class="container">
<div class="row">
<div class="col-xs-12 text-right">
<button class="btn btn-default btn-corner" type="submit" data-bind="click: startOver, visible: queryData().id > 0">Start over</button>
</div>
</div>
</div>
<div class="container main">
<div class="row">
<div class="c12 text-center">
<h1 data-bind="text: queryData().text"></h1>
<h3 data-bind="text: queryData().subhead"></h3>
<h3><a data-bind="text: queryData().link, attr: {href: url}"></a></h3>
<div class="option-group" data-bind="foreach: queryData().answers">
<button class="btn btn-default btn-lg" type="submit" data-bind="click: $parent.goToTarget, text: text"></button>
</div>
<button class="btn btn-default" type="submit" data-bind="click: stepBack, visible: navHistory().length > 1">Previous Step</button>
<button class="btn btn-default" type="submit" data-bind="click: buyBook, visible: navHistory().length > 1">Buy the book</button>
</div>
</div>
</div>
<div class="push"></div>
</div>
<script src="http://ajax.aspnetcdn.com/ajax/knockout/knockout-3.3.0.js"></script>
<script src="app.js?v=0.4.0"></script>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript" src="amazon-localiser.js"></script>
<script>
</script>
I have tried using jQuery getScript and also window.location.reload(); but neither reload just the javascript, the only thing that I can find to work is F5/Refresh.
I noticed that the amazon-localiser.js invokes the function findLocation onload of the page, as you can see below.
if (window.addEventListener) {
window.addEventListener("load", findLocation, false)
} else {
window.attachEvent("onload", findLocation)
}
So, a possible solution to your problem, could be to invoke this function again when you need to update your amazon link.
I tried invoking it from the console and it works, so try to invoke findLocation() manually when needed and see if it serves your scope.
Simone
You can add dynamically script on the page with some condition, for example:
var script = document.createElement('script');
var src;
if (true) {
src = 'amazon.co.uk';
} else {
src = 'amazon.com';
}
script.src = src;
document.head.appendChild(script);
As gnllucena told, you can view the question or there is the solution.
Build the loader function:
Put the following code in the document
<script type="text/javascript">
function LoadMyJs(scriptName) {
var docHeadObj = document.getElementsByTagName("head")[0];
var newScript= document.createElement("script");
newScript.type = "text/javascript";
newScript.src = scriptName;
docHeadObj.appendChild(newScript);
}
</script>
// place a button for reloading script.
<input type="button" name="reloadNewJs" value="Reload JavaScript" onClick="LoadMyJs('needed_script.js')">
So, as you can see I amusing javascript to show/hide elements, however when you click the .png it shows the text but does not hide the other element's text. I have been going over and over this script and Google searching the hell out of it and I cannot come up with an answer. I think I need another pair of eyes, so if anyone takes a look at this let me know if there are errors or if I'm missing some code.
<html>
<head>
<meta name = "viewport" content = "initial-scale = 1.0, user-scalable = no" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<script type="text/javascript" src="NKit.js"></script>
<link rel="stylesheet" type="text/css" href="style.css" />
<script type="text/javascript">
function showStuff(id) {
document.getElementById(id).style.display = 'block';
}
function hideStuff(id) {
document.getElementById(id).style.display = 'none';
}
</script>
</head>
<body>
<div class="content">
<section class="left">
<p>
<img src="character1.png" id="char1" />
</p>
<p>
<img src="character2.png" id="char2" />
</p>
</section>
<section class="right">
<span id="character1" style="display: none;">Show character1 information</span>
<span id="character2" style="display: none;">Character 2 information</span>
</section>
</div>
</body>
</html>
<a href="#" onclick="showStuff('character1');" onclick="hideStuff('character2');">
On this line, you first set the property onclick to showStuff('character1'), then you reassign it to hideStuff('character2').
So, you should wrap these two function calls into one function and then assign that function to onclick.
onclick="function() { showStuff('character1'); hideStuff('character2'); }