I'm having trouble running javascript hide/show div using CSS classes, the initial state all the divs are hidden than when i type in the searchBar the name of the recipe (like the div ribs) it show only the ribs div and so far is working, but when i clear the searchBar its show all the div instead of hiding all of them again.
HTML
<section id="work">
<h2 >Recipe</h2>
<div >
<input type="text" onkeyup="search_recipe()" placeholder="search" id="search" ></input>
<div >
<h3>Categories</h3>
<i id="categories-button"></i>
</div>
<div id="h_categories">
<span data-filter='all'>All </span>
<span data-filter='.breakfast'>Breakfast</span>
<span data-filter='.dessert'>dessert</span>
<span data-filter='.burgersandwiches'>Burger & Sandwiches</span>
</div>
</div>
<div >
<!-- <div >
<img src="./asset/img" alt="" >
<h3 ></h3>
<a href="#" >
More details <i class='uil uil-angle-right-b recipe__icon'></i>
</a>
</div> -->
<div >
<img src="./asset/img/ramen_recipe.jpeg" alt="" >
<h3 >Helllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burrito_recipe.jpeg" alt="" >
<h3 >aelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burger_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/chips_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/raspberry_brownies_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/steaks_recipe.jpeg" alt="" >
<h3 >Zelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/shrimp_pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/ribs_recipe.jpeg" alt="" >
<h3 >Ribs</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
</section>
CSS
.recipe__container {
padding-top: 1rem;
display: flex;
flex-wrap: wrap;
gap: 3rem;
}
.recipe__filters {
display: flex;
justify-content: center;
align-items: center;
column-gap: .75rem;
flex-direction: column;
}
.recipe__item {
cursor: pointer;
color: var(--title-color);
padding: .25rem .75rem;
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__items {
cursor: pointer;
color: var(--title-color);
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__card {
box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
padding: 1rem;
border-radius: 1rem;
display: none;
}
.recipe__img {
border-radius: 1rem;
margin-bottom: var(--mb-1-25);
width: 230px;
}
.recipe-title-item {
font-size: var(--normal-font-size);
font-weight: var(--font-medium);
margin-bottom: var(--mb-0-75);
}
.hide_categories {
display: none;
transition: all ease-in-out;
}
.categories {
display: grid;
padding-bottom: 2rem;
transition: all ease-in-out;
grid-template-columns: repeat(4, max-content);
}
#categories-button {
z-index: 9;
}
.cat {
display: flex;
align-items: center;
margin-bottom: 1rem;
}
#categories-button {
margin-left: 1rem;
cursor: pointer;
font-size: 1.5rem;
}
.active-recipe {
background-color: var(--first-color);
color: var(--white-color);
}
input[type="text"],
input[type="email"],
textarea[type="text"],
select {
padding-left: 1rem;
}
.recipe {
display: block;
}
JAVASCRIPT
function search_recipe() {
let input = document.getElementById('search').value
input = input.toLowerCase();
let recipeCard = document.getElementsByClassName('recipe__card');
for (i = 0; i < recipeCard.length; i ) {
if (recipeCard[i].textContent.toLowerCase().includes(input)) {
recipeCard[i].style.display = "block";
} else {
recipeCard[i].style.display = "none";
}
}
}
CodePudding user response：
function search_recipe() {
let input = document.getElementById('search').value
input = input.toLowerCase();
let recipeCard = document.getElementsByClassName('recipe__card');
for (i = 0; i < recipeCard.length; i ) {
if (input != "" && recipeCard[i].textContent.toLowerCase().includes(input)) {
recipeCard[i].style.display = "block";
} else {
recipeCard[i].style.display = "none";
}
}
}.recipe__container {
padding-top: 1rem;
display: flex;
flex-wrap: wrap;
gap: 3rem;
}
.recipe__filters {
display: flex;
justify-content: center;
align-items: center;
column-gap: .75rem;
flex-direction: column;
}
.recipe__item {
cursor: pointer;
color: var(--title-color);
padding: .25rem .75rem;
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__items {
cursor: pointer;
color: var(--title-color);
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__card {
box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
padding: 1rem;
border-radius: 1rem;
display: none;
}
.recipe__img {
border-radius: 1rem;
margin-bottom: var(--mb-1-25);
width: 230px;
}<section id="work">
<h2 >Recipe</h2>
<div >
<input type="text" onkeyup="search_recipe()" placeholder="search" id="search" ></input>
<div >
<h3>Categories</h3>
<i id="categories-button"></i>
</div>
<div id="h_categories">
<span data-filter='all'>All </span>
<span data-filter='.breakfast'>Breakfast</span>
<span data-filter='.dessert'>dessert</span>
<span data-filter='.burgersandwiches'>Burger & Sandwiches</span>
</div>
</div>
<div >
<!-- <div >
<img src="./asset/img" alt="" >
<h3 ></h3>
<a href="#" >
More details <i class='uil uil-angle-right-b recipe__icon'></i>
</a>
</div> -->
<div >
<img src="./asset/img/ramen_recipe.jpeg" alt="" >
<h3 >Helllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burrito_recipe.jpeg" alt="" >
<h3 >aelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burger_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/chips_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/raspberry_brownies_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/steaks_recipe.jpeg" alt="" >
<h3 >Zelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/shrimp_pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/ribs_recipe.jpeg" alt="" >
<h3 >Ribs</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
</section>All I added is the following condition inside the for-loop: input != ""
If the input is blank, the program will jump to the else statement which hides the recipeCards.
CodePudding user response：
I added your code into a snippet, so I added a condition that checks if input's value is empty, if so, it would make all elements hidden, if not, it executes your code.
function search_recipe() {
let input = document.getElementById('search').value
input = input.toLowerCase();
let recipeCard = document.getElementsByClassName('recipe__card');
if(input === ""){
for (i = 0; i < recipeCard.length; i ) {
recipeCard[i].style.display = "none";
}
}
else {
for (i = 0; i < recipeCard.length; i ) {
if (recipeCard[i].textContent.toLowerCase().includes(input)) {
recipeCard[i].style.display = "block";
}
else {
recipeCard[i].style.display = "none";
}
}
}
}.recipe__container {
padding-top: 1rem;
display: flex;
flex-wrap: wrap;
gap: 3rem;
}
.recipe__filters {
display: flex;
justify-content: center;
align-items: center;
column-gap: .75rem;
flex-direction: column;
}
.recipe__item {
cursor: pointer;
color: var(--title-color);
padding: .25rem .75rem;
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__items {
cursor: pointer;
color: var(--title-color);
font-weight: var(--font-medium);
border-radius: .5rem;
margin-bottom: 2rem;
text-align: center;
}
.recipe__card {
box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
padding: 1rem;
border-radius: 1rem;
display: none;
}
.recipe__img {
border-radius: 1rem;
margin-bottom: var(--mb-1-25);
width: 230px;
}
.recipe-title-item {
font-size: var(--normal-font-size);
font-weight: var(--font-medium);
margin-bottom: var(--mb-0-75);
}
.hide_categories {
display: none;
transition: all ease-in-out;
}
.categories {
display: grid;
padding-bottom: 2rem;
transition: all ease-in-out;
grid-template-columns: repeat(4, max-content);
}
#categories-button {
z-index: 9;
}
.cat {
display: flex;
align-items: center;
margin-bottom: 1rem;
}
#categories-button {
margin-left: 1rem;
cursor: pointer;
font-size: 1.5rem;
}
.active-recipe {
background-color: var(--first-color);
color: var(--white-color);
}
input[type="text"],
input[type="email"],
textarea[type="text"],
select {
padding-left: 1rem;
}
.recipe {
display: block;
}<section id="work">
<h2 >Recipe</h2>
<div >
<input type="text" onkeyup="search_recipe()" placeholder="search" id="search" ></input>
<div >
<h3>Categories</h3>
<i id="categories-button"></i>
</div>
<div id="h_categories">
<span data-filter='all'>All </span>
<span data-filter='.breakfast'>Breakfast</span>
<span data-filter='.dessert'>dessert</span>
<span data-filter='.burgersandwiches'>Burger & Sandwiches</span>
</div>
</div>
<div >
<!-- <div >
<img src="./asset/img" alt="" >
<h3 ></h3>
<a href="#" >
More details <i class='uil uil-angle-right-b recipe__icon'></i>
</a>
</div> -->
<div >
<img src="./asset/img/ramen_recipe.jpeg" alt="" >
<h3 >Helllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burrito_recipe.jpeg" alt="" >
<h3 >aelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/burger_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/chips_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/raspberry_brownies_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/steaks_recipe.jpeg" alt="" >
<h3 >Zelllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/shrimp_pasta_recipe.jpeg" alt="" >
<h3 >Telllllllo</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
<div >
<img src="./asset/img/ribs_recipe.jpeg" alt="" >
<h3 >Ribs</h3>
<a href="#" >
More details <i class='uil uil-angle-right-b blog__icon'></i>
</a>
</div>
</section>