Here is my code. I want to capture Nebula and Price 1.44 when I click on button. Can anyone help me please.
Html code
<div class="item__top">
<p> Nebula</p>
<p>
Price<span class="big-price">1</span>.44
<span class="text-large">/mo</span>
</p>
<p>$2.88</p>
<button class="calculate-hosting">Get Started</button>
<p>You pay $17.28 — Renews at $33.88/year</p>
</div>
JS code
var calHosting = document.querySelectorAll('.calculate-hosting');
[...calHosting].forEach(cal=>{
cal.addEventListener('click',function(event){
document.getElementById('cal-container').style.display='block';
});
});
Note: I am dealing with mutiple buttons so thats why I sued querySelectorAll.
You can use this to refer to the button that was clicked, .parentElement to climb up, and then select paragraphs and their inner text. The text can be parsed however you like from there.
var calHosting = document.querySelectorAll('.calculate-hosting');
[...calHosting].forEach(cal => {
cal.addEventListener('click', function (event) {
var paragraphs = this.parentElement.querySelectorAll("p");
var p1 = paragraphs[0].innerText;
var p2 = paragraphs[1].innerText;
var price = Number(p2.match(/\d+\.\d+/)[0]);
console.log(p1); // Nebula
console.log(p2); // Price1.44 /mo
console.log(price); // 1.44
// document.getElementById('cal-container').style.display = 'block';
});
});
<div class="item__top">
<p> Nebula</p>
<p>
Price<span class="big-price">1</span>.44
<span class="text-large">/mo</span>
</p>
<p>$2.88</p>
<button class="calculate-hosting">Get Started</button>
<p>You pay $17.28 — Renews at $33.88/year</p>
</div>
Related
I have a HTML/CSS/JS script that is allowing me to rotate text for a certain part of it. I'm just having the problem of making it work for multiple sections as the script targets a span[data-up] & span[data-show].
Any help appreciated, code shown below.
<section class="rotating-text-section">
<h2>
We educate by
<div class="wrapper">
<span data-up>teaching.</span>
<span data-show>showing.</span>
<span>doing.</span>
<span>repeating.</span>
</div>
</h2>
</section>
setInterval(() => {
const up = document.querySelector('span[data-up]');
const show = document.querySelector('span[data-show]');
const down = show.nextElementSibling || document.querySelector('span:first-child');
up.removeAttribute('data-up');
show.removeAttribute('data-show');
show.setAttribute('data-up', '');
down.setAttribute('data-show', '');
}, 2000);
I just changed the class names of each span element and targeted them by this in the JavaScript script.
My second snippet of HTML was:
<div class="wrapper-two">
<span class="second-span" data-up>technology.</span>
<span class="second-span" data-show>experience.</span>
<span class="second-span">listening.</span>
<span class="second-span">experimenting.</span>
</div>
My second JS script is as follows:
setInterval(() => {
const up = document.querySelector('.second-span[data-up]');
const show = document.querySelector('.second-span[data-show]');
const down = show.nextElementSibling ||
document.querySelector('.second-span:first-child');
up.removeAttribute('data-up');
show.removeAttribute('data-show');
show.setAttribute('data-up', '');
down.setAttribute('data-show', '');
}, 1000);
I'm working on a recipes page where you have a series of buttons and posts that are interconnected. The buttons have names of recipe categories such as Pie and Cake. When you click on a 'Pie' button, you are only shown the posts that are categorized as 'Pie'. Both the buttons and the posts have data attributes that have their recipe category on there.
I am able to get this to work, however, I'm having issues for when you click on a recipe category button, and there are no corresponding posts. For this, I created an empty '#message' div that would output a message if there were no recipe posts found, and an empty string if there were recipe posts.
When I click on a recipe button that does have posts, I get the 'No Recipes' text in the message. Also weird that it looks like it's applying the correct message only to the last button/post which in this example is 'Cake'.
Can someone explain why this is not working? I get it's probably a scope/closure issue, but I'm unsure what's going on.
//BUTTONS
<section>
<button class="recipe_button" data-btncategory="Pie">
Pie
</button>
<button class="recipe_button" data-btncategory="Cake">
Cake
</button>
</section>
//POSTS
<div id="message"></div>
<section class="recipe" data-postcategory="Pie">
<h2>Pie Recipe</h2>
</section>
<section class="recipe" data-postcategory="Cake">
<h2>Cake Recipe</h2>
</section>
let posts = document.querySelectorAll(".recipe");
let postsArr = Array.from(posts);
let btn = document.querySelectorAll(".recipe_button");
let btnArray = Array.from(btn);
let message = document.getElementById("message");
btnArray.forEach((button) => {
button.onclick = (el) => {
let match = el.target.dataset.btncategory;
postsArr.filter(function(post, i) {
if (post.dataset.postcategory == match) {
posts[i].style.display = "grid";
<-- message not working properly -->
message.innerHTML = "";
} else {
posts[i].style.display = "none";
<-- message not working properly -->
message.innerHTML = "Sorry No Recipes Available";
}
});
}
});
look at how your filter is running. you'll always get ones that match and ones that don't - so both the if and the else code will always run
What you want to do is hide/display posts in the filter, returning true for displayed and false when hidden
That way, the resulting array length will be 0 if no match, and 1 or more if there is a match
Then another if/else after determining if there is anything displayed to show/hide the message
let posts = document.querySelectorAll(".recipe");
let postsArr = Array.from(posts);
let btn = document.querySelectorAll(".recipe_button");
let btnArray = Array.from(btn);
let message = document.getElementById("message");
btnArray.forEach((button) => {
button.onclick = (el) => {
let match = el.target.dataset.btncategory;
let found = postsArr.filter(function(post) {
if (post.dataset.postcategory == match) {
post.style.display = "grid";
return true;
} else {
post.style.display = "none";
return false;
}
}).length;
message.innerHTML = found ? "" : "Sorry No Recipes Available";
}
});
<section>
<button class="recipe_button" data-btncategory="Pie">
Pie
</button>
<button class="recipe_button" data-btncategory="Cake">
Cake
</button>
</section>
//POSTS
<div id="message"></div>
<section class="recipe" data-postcategory="Pie">
<h2>Pie Recipe</h2>
</section>
<section class="recipe" data-postcategory="Cake">
<h2>Cake Recipe</h2>
</section>
Having said all that, the message would NEVER display Sorry No Recipes Available since your buttons guarantee that there will be one displayed
Here's a straightforward way to make your idea work.
It uses an event listener with event delegation.
See the in-code comments for further clarifications.
// Identifies DOM elements
const
btnsDiv = document.getElementById("btns"),
posts = [...document.getElementsByClassName("recipe")],
message = document.getElementById("message");
// Calls `filterPosts` when btnsDiv is clicked
btnsDiv.addEventListener("click", filterPosts);
// Defines `filterPosts`
function filterPosts(event){
// Ignores irrelevant clicks
if(!event.target.classList.contains("btn")){ return; }
// Shows message while there is no match
let match = false;
message.classList.remove("hidden");
// Remembers category
const category = event.target.dataset.category;
// Iterates through recipes
posts.forEach( (post) => {
// Hides recipe until it matches
post.classList.add("hidden");
// If recipe matches, shows it and notes the match
if(post.dataset.category == category) {
post.classList.remove("hidden");
match = true;
}
});
// If any match occurred, hides message
if(match == true){
message.classList.add("hidden");
}
}
.hidden{ display: none; }
<div id = "btns">
<button class="btn" data-category="Pie">Pie </button>
<button class="btn" data-category="Cake"> Cake </button>
<button class="btn" data-category="Pasta"> Pasta </button>
</div>
<div id="message" class="hidden">Sorry No Recipes Available</div>
<div class="recipe hidden" data-category="Pie">
<h2>Pie Recipe 1</h2>
</div>
<div class="recipe hidden" data-category="Cake">
<h2>Cake Recipe 1</h2>
</div>
<div class="recipe hidden" data-category="Cake">
<h2>Cake Recipe 2</h2>
</div>
I am trying to dynamically load a bunch of posts from a API and then implement a like button for each of them.
function load_allposts(){
fetch("/posts")
.then(response => response.json())
.then(posts => {
var enc = document.createElement('div');
enc.className = "post-enc";
let s = ``;
posts.forEach(element => {
s += `<div class="p-container">
<div>
<button type="button" class="btn btn-link" class="profile-btn" data-id=${element[0].author_id}> ${element[0].author_name} </button>
</div>
<div class="post-body">
${element[0].body}
</div>
<div class="p1">
<span class="like-status">${element[0].likes}</span> people like this
<button class="like-btn">${element[1]}</button>
</div>
<div class="post-time">
${element[0].timestamp}
</div>
</div>`;
});
enc.innerHTML = s;
document.querySelector('#all-posts').appendChild(enc);
});
}
I would to like to modify the <span class="like-status"> element when I click the <button class="like-btn">. The only way that I can think of to get a reference to <span class="like-status"> is by adding a ID to it by implementing some kind of counter, which I feel is more like a hack rather than real solution.
I tried googling but almost all solutions involved JQuery, which I am not familiar with. Any help would be appreciated.
You can use delegate event binding document.addEventListener('click', function(event) { to trigger click event for dynamically added button.
It will raise click on every element inside document you need to find if it is one which you expect with event.target.matches('button.like-btn').
Then you can find your span with getting parent and then finding span.like-status using querySelector.
Try it below. For demo modified load_allposts. You do not need to do any change in it.
load_allposts();
document.addEventListener('click', function(event) {
if (event.target.matches('button.like-btn')) {
let span = event.target.parentElement.querySelector('span.like-status');
span.innerText = 'Modified';
}
});
function load_allposts() {
let posts = [1]
var enc = document.createElement('div');
enc.className = "post-enc";
let s = ``;
posts.forEach(element => {
s += `<div class="p-container">
<div>
<button type="button" class="btn btn-link" class="profile-btn" data-id=element[0].author_id> element[0].author_name </button>
</div>
<div class="post-body">
element[0].body
</div>
<div class="p1">
<span class="like-status">element[0].likes</span> people like this
<button class="like-btn">element[1]</button>
</div>
<div class="post-time">
element[0].timestamp
</div>
</div>`;
});
enc.innerHTML = s;
document.querySelector('#all-posts').appendChild(enc);
}
<div id='all-posts'>
</div>
Note event delegation have extra overhead so alternatively you can use below code.
Here added two functions added as below and added one line bindClickEvent(enc); at end of load_allposts function.
likeClick - perform custom logic to update span.like-status
bindClickEvent - bind click event to all button.like-btn inside div
Call bindClickEvent(enc); at end of load_allposts function.
Try it below.
load_allposts();
// perform custom logic to update span.like-status
function likeClick(event) {
// querySelector will return first matching element
let span = event.target.parentElement.querySelector('span.like-status');
span.innerText = 'Modified';
}
// bind click event to all button.like-btn inside div
function bindClickEvent(enc) {
// querySelectorAll will return array of all matching elements
let buttons = enc.querySelectorAll('button.like-btn');
// loop over each button and assign click function
for (let i = 0; i < buttons.length; i++) {
buttons[i].onclick = likeClick;
}
}
function load_allposts() {
let posts = [1]
var enc = document.createElement('div');
enc.className = "post-enc";
let s = ``;
posts.forEach(element => {
s += `<div class="p-container">
<div>
<button type="button" class="btn btn-link" class="profile-btn" data-id=element[0].author_id> element[0].author_name </button>
</div>
<div class="post-body">
element[0].body
</div>
<div class="p1">
<span class="like-status">element[0].likes</span> people like this
<button class="like-btn">element[1]</button>
</div>
<div class="post-time">
element[0].timestamp
</div>
</div>`;
});
enc.innerHTML = s;
document.querySelector('#all-posts').appendChild(enc);
// assign click event to buttons inside enc div.
bindClickEvent(enc);
}
<div id='all-posts'>
</div>
I want to check if time and day is same when I click to add these paragraphs into the array, If time and day is same then also prevent adding items into an array. Can Anyone help me please.Thanks
window.addEventListener("load", function() {
var test = [];
[...document.querySelectorAll(".container p")].forEach(function(para) {
para.addEventListener("click", function(e) {
var text = e.currentTarget.textContent;
if (test.indexOf(text) === -1)
{
test.push(text);
}
console.log(test)
})
})
})
<div class="container">
<p>
<b>Group:N</b>Code:1234<br/>
<b>Session Type:</b>CS<br/>
<b>Location:</b>Main Hall<br/>
<b>Time:</b>11:00<br/>
<b>Day:</b>Tuesday<br/>
<b>Duration:</b>1hour<br/>
</p>
</div>
<div class="container">
<p>
<b>Group:M</b>Code:98743<br/>
<b>Session Type:</b>NP<br/>
<b>Location:</b>Main Hall2<br/>
<b>Time:</b>11:00<br/>
<b>Day:</b>Tuesday<br/>
<b>Duration:</b>1hour<br/>
</p>
</div>
There's a page with some HTML as follows:
<dd id="fc-gtag-VARIABLENAMEONE" class="fc-content-panel fc-friend">
Then further down the page, the code will repeat with, for example:
<dd id="fc-gtag-VARIABLENAMETWO" class="fc-content-panel fc-friend">
How do I access these elements using an external script?
I can't seem to use document.getElementByID correctly in this instance. Basically, I want to search the whole page using oIE (InternetExplorer.Application Object) created with VBScript and pull through every line (specifically VARIABLENAME(one/two/etc)) that looks like the above two into an array.
I've researched the Javascript and through trial and error haven't gotten anywhere with this specific page, mainly because there's no tag name, and the tag ID always changes at the end. Can someone help? :)
EDIT: I've attempted to use the Javascript provided as an answer to get results, however nothing seems to happen when applied to my page. I think the tag is ALSO in a tag so it's getting complicated - here's a major part of the code from the webpage I will be scanning.
<dd id="fc-gtag-INDIAN701" class="fc-content-panel fc-friend">
<div class="fc-pic">
<img src="http://image.xboxlive.com/global/t.58570942/tile/0/20400" alt="INDIAN701"/>
</div>
<div class="fc-stats">
<div class="fc-gtag">
<a class="fc-gtag-link" href='/en-US/MyXbox/Profile?gamertag=INDIAN701'>INDIAN701</a>
<div class="fc-gscore-icon">3690</div>
</div>
<div class="fc-presence-text">Last seen 9 hours ago playing Halo 3</div>
</div>
<div class="fc-actions">
<div class="fc-icon-actions">
<div class="fc-block">
<span class="fc-buttonlabel">Block User</span>
</div>
</div>
<div class="fc-text-actions">
<div class="fc-action"> </div>
<span class="fc-action">
View Profile
</span>
<span class="separator-icon">|</span>
<span class="fc-action">
Compare Games
</span>
<span class="separator-icon">|</span>
<span class="fc-action">
Send Message
</span>
<span class="separator-icon">|</span>
<span class="fc-action">
Send Friend Request
</span>
</div>
</div>
</dd>
This then REPEATS, with a different username (the above username is INDIAN701).
I tried the following but clicking the button doesn't yield any results:
<script language="vbscript">
Sub window_onLoad
Set oIE = CreateObject("InternetExplorer.Application")
oIE.visible = True
oIE.navigate "http://live.xbox.com/en-US/friendcenter/RecentPlayers?Length=12"
End Sub
</script>
<script type="text/javascript">
var getem = function () {
var nodes = oIE.document.getElementsByTagName('dd'),
a = [];
for (i in nodes) {
(nodes[i].id) && (nodes[i].id.match(/fc\-gtag\-/)) && (a.push(nodes[i]));
}
alert(a[0].id);
alert(a[1].id);
}
</script>
<body>
<input type="BUTTON" value="Try" onClick="getem()">
</body>
Basically I'm trying to get a list of usernames from the recent players list (I was hoping I wouldn't have to explain this though :) ).
var getem = function () {
var nodes = document.getElementsByTagName('dd'),
a = [];
for (var i in nodes) if (nodes[i].id) {
(nodes[i].id.match(/fc\-gtag\-/)) && (a.push(nodes[i].id.split('-')[2]));
}
alert(a[0]);
};
please try it by clicking here!
var getem = function () {
var nodes = document.getElementsByTagName('dd'),
a = [];
for (var i in nodes) if (nodes[i].id) {
(nodes[i].id.match(/fc\-gtag\-/)) && (a.push(nodes[i]));
}
alert(a[0].id);
alert(a[1].id);
};
try it out on jsbin
<body>
<script type="text/javascript">
window.onload = function () {
var outputSpan = document.getElementById('outputSpan'),
iFrame = frames['subjectIFrame'];
iFrame.document.location.href = 'http://live.xbox.com/en-US/friendcenter/RecentPlayers?Length=1';
(function () {
var nodes = iFrame.document.getElementsByTagName('dd'),
a = [];
for (var i in nodes) if (nodes[i].id) {
(nodes[i].id.match(/fc\-gtag\-/)) && (a.push(nodes[i].id.split('-')[2]));
}
for (var j in a) if (a.hasOwnProperty(j)) {
outputSpan.innerHTML += (a[j] + '<br />');
}
})();
};
</script>
<span id="outputSpan"></span>
<iframe id="subjectIFrame" frameborder="0" height="100" width="100" />
</body>
What does "I can't seem to use document.getElementsByID correctly in this instance" mean? Are you referring to the fact that you are misspelling getElementByID?
So...something like this (jQuery)?
var els = [];
$('.fc-content-panel.fc-friend').each(function() {
els.push(this));
});
Now you have an array of all the elements that have both of those classes.