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- Theory
- Theory
- Comments
Add the branch else
The assignment the boss gave us is almost finished: users will no longer be able to post comments that are too long. If the text in the input field is longer than 142 characters, the submit button is locked and an error message appears. In this case, the user must correct the comment. Currently the error message does not disappear, and the submit button is not locked even if the text is shortened to the required length. How can we fix this problem?
We need the alternative branch else: if the condition is false, that is, the comment is no longer than 142 characters, then we need to write false to the disabled button property, and we need to remove the warning class from the form.
Add a second branch to our script along with any required instructions and check that now everything works as it should: if the comment is too long, the button is locked and an error message appears. If the character limit is not exceeded, the button is unlocked and the error message disappears.
Files
<!DOCTYPE html>
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<main class="inner-news">
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<button class="button close-button" type="button"><span>Close</span></button>
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<article class="container">
<h1 class="inner-heading">It can be healthy to go for a walk.</h1>
<div class="news-full">
<img src="img/walk.jpg" alt="People go for walks.">
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<button class="heart" type="button"><span class="likes-number">40</span></button>
<time datetime="2020-02-19">February 19, 2020</time>
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<p>However, that might not be the case if you don't go for a stroll <button class="tooltip-button" type="button" data-tooltip-text="Or just don't go there">with those people</button>. Scientists from <button class="tooltip-button" type="button" data-tooltip-text="That's a very cool university">Harvard</button> have found that relationships with loved ones affect happiness more than intelligence, salary, or your number of <button class="tooltip-button" type="button" data-tooltip-text="Did YOU sign up for the newsletter?">followers</button>. It still remains <button class="tooltip-button" type="button" data-tooltip-text="More money is needed">unclear</button> how the number of <button class="tooltip-button" type="button" data-tooltip-text="The superior lifeform">kitties</button> affects your level of happiness.</p>
</div>
</article>
<section class="comment-feed container">
<h2>Comments</h2>
<ol class="comment-list">
<li class="user-comment">From the point of view of banal erudition, every individual whose cynical thinking creates associations with concepts of paradoxical illusions simply cannot but ignore the criteria of utopian subjectivity. And from the point of view of the value or content of this logical statement, it is determined by means of a purely negative predicate whether it adds anything to the entire body of knowledge. <br>
Immanuel Kant <br>
Do you think that you understand human nature better than Kant?</li>
</ol>
<form action="https://echo.htmlacademy.ru/courses" method="post" class="comment-form">
<div class="comment-inner">
<label class="comment-label" for="comment-textarea">your comment</label>
<textarea class="comment-field comment-area" rows="3" placeholder="Comment" required id="comment-textarea">To understand Kant's philosophy, you must first understand yourself. It might take you some time to achieve this. It often happens that you want to give a person happiness, but instead you bring them a volume of Kant.</textarea>
</div>
<span class="text-counter"><span class="char-counter">217</span>/218 characters used</span>
<button class="button submit-button" type="submit">Submit</button>
</form>
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/* Button text styles */
.tooltip-button {
cursor: pointer;
position: relative;
padding: 1px 8px;
border: none;
color: inherit;
font: inherit;
}
.tooltip-button::after {
position: absolute;
content: "";
top: 0;
right: 0;
width: 0;
height: 0;
border: 4px solid;
border-left-color: transparent;
border-bottom-color: transparent;
}
/* Tooltip styles */
@keyframes tooltip-opener {
0% {
transform: translate(50%) scaleX(0);
}
100% {
transform: translate(100%) scaleX(100%);
}
}
.tooltip {
z-index: 2;
display: none;
flex-direction: row-reverse;
position: fixed;
max-width: 256px;
right: 0;
top: 160px;
border-radius: 8px 0 0 8px;
}
.opened {
display: flex;
animation: tooltip-opener 150ms;
}
.tooltip-text {
display: flex;
align-items: center;
padding: 10px;
}
.close-button {
min-height: 64px;
display: flex;
justify-content: center;
align-items: center;
width: 30px;
margin: 0;
padding: 0;
border-radius: 8px 0 0 8px;
}
.close-button span {
display: inline-block;
vertical-align: middle;
transform: rotate(-90deg);
}
/* Comment entry block styles */
.comment-area {
height: unset;
resize: none;
margin-bottom: 10px;
padding-top: 4px;
padding-bottom: 4px;
line-height: 24px;
}
.text-counter {
display: inline-block;
vertical-align: baseline;
padding: 7px 0;
margin-right: auto;
}
.comment-form.warning .comment-label {
color: #f05b29;
}
.comment-form.warning .comment-area {
color: #f05b29;
border-color: #f05b29;
}
.comment-form.warning .comment-area:focus {
outline-color: #f05b29;
}
.comment-form.warning .char-counter {
color: #f05b29;
font-weight: bold;
}
.submit-button:disabled {
opacity: 0.25;
}
/* Color schemes */
.light-theme .tooltip {
background-color: #ffffff;
box-shadow: 0 0 16px rgba(0, 0, 0, 0.5);
}
.light-theme .tooltip-button {
background-color: #f2f2f2;
}
.light-theme .tooltip-button:focus,
.light-theme .tooltip-button:hover {
background-color: #6653d9;
color: #ffffff;
outline-color: #b6aaff;
}
.tooltip-button:active {
opacity: 0.6;
}
.light-theme .tooltip-button::after {
border-right-color: #6653d9;
border-top-color: #6653d9;
}
.dark-theme .tooltip {
background-color: #2a2930;
box-shadow: 0 0 16px rgba(0, 0, 0, 1);
}
.dark-theme .tooltip-button {
background-color: #0a0910;
}
.dark-theme .tooltip-button:focus,
.dark-theme .tooltip-button:hover {
outline-color: #6653d9;
background-color: #b6aaff;
color: #17161a;
}
.dark-theme .tooltip-button::after {
border-right-color: #b6aaff;
border-top-color: #b6aaff;
}
let tooltip = document.querySelector('.tooltip');
let closeButton = document.querySelector('.close-button');
let tooltipButtons = document.querySelectorAll('.tooltip-button');
let tooltipText = document.querySelector('.tooltip-text');
closeButton.onclick = function () {
tooltip.classList.remove('opened');
};
for (let tooltipButton of tooltipButtons) {
tooltipButton.onclick = function () {
tooltipText.textContent = tooltipButton.dataset.tooltipText;
tooltip.classList.add('opened');
};
}
let commentForm = document.querySelector('.comment-form');
let commentList = document.querySelector('.comment-list');
let commentField = document.querySelector('.comment-field');
let charCounter = document.querySelector('.char-counter');
let submitButton = document.querySelector('.submit-button');
commentForm.onsubmit = function (evt) {
evt.preventDefault();
let newComment = document.createElement('li');
newComment.classList.add('user-comment');
newComment.textContent = commentField.value;
commentField.value = '';
commentList.append(newComment);
};
commentField.oninput = function () {
charCounter.textContent = commentField.value.length;
if (commentField.value.length > 218) {
commentForm.classList.add('warning');
submitButton.disabled = true;
} // Add else here
};
let page = document.querySelector('.page');
let themeButton = document.querySelector('.theme-button');
themeButton.onclick = function () {
page.classList.toggle('light-theme');
page.classList.toggle('dark-theme');
};
let heart = document.querySelector('.heart');
let likesNumber = document.querySelector('.likes-number');
heart.onclick = function () {
if (heart.classList.contains('added')) {
likesNumber.textContent--;
} else {
likesNumber.textContent++;
}
heart.classList.toggle('added');
};
Thanks! We’ll fix everything at once!
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Console
- On line 23 add the alternative branch
else { }. - Inside the curly braces of the
elsestatement remove thewarningclass from thecommentFormelement using theclassList.removemethod and unlock the submit button. - In the mini-browser type any two additional characters in the comment field. Notice that the counter turns red and the button is locked.
- Remove one character from the input field. Notice that the counter and button have returned to their original state.
- Click the “Submit” button. Notice that the comment was sent, but the counter under the input field did not reset.
Comments