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In this tutorial we will create a Delete JSON Element From An Array using JavaScript. This code will use onclick() to call a specific function that can delete a JSON element using delete a built-in JavaScript function that use for delete JSON object by providing the index position of an element. You can apply this script to your code, it is a user-friendly program feel free to modify it.
We will use JavaScript to add some new feature to the website interface by actually written into an HTML page. It is what gives your page a different interactive elements and animation that engage a user.
.
Getting Started:
First you have to download bootstrap framework, this is the link for the bootstrap that I used for the layout design https://getbootstrap.com/.
The Main Interface
This code contains the interface of the application. To create this just write these block of code inside the text editor and save this as index.html.
Creating the Script
This code contains the script of the application. This code will delete JSON element when the button is clicked. To do this just copy and write these block of codes as shown below inside the text editor and save it as script.js inside the js directory
There you have it we successfully created a Delete JSON Element From An Array using JavaScript. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!
Download
We will use JavaScript to add some new feature to the website interface by actually written into an HTML page. It is what gives your page a different interactive elements and animation that engage a user.
.
Getting Started:
First you have to download bootstrap framework, this is the link for the bootstrap that I used for the layout design https://getbootstrap.com/.
The Main Interface
This code contains the interface of the application. To create this just write these block of code inside the text editor and save this as index.html.
- <!DOCTYPE html>
- <html
lang
=
"en"
>
- <head
>
- <meta
charset
=
"UTF-8"
name
=
"viewport"
content
=
"width=device-width, initial-scale=1"
/
>
- <link
rel
=
"stylesheet"
type
=
"text/css"
href
=
"css/bootstrap.css"
/
>
- </
head
>
- <body
>
- <nav class
=
"navbar navbar-default"
>
- <div
class
=
"container-fluid"
>
- <a
class
=
"navbar-brand"
href
=
"https://sourcecodester.com"
>
Sourcecodester</
a
>
- </
div
>
- </
nav>
- <div
class
=
"col-md-3"
></
div
>
- <div
class
=
"col-md-6 well"
>
- <h3
class
=
"text-primary"
>
JavaScript - Delete JSON Element From An Array</
h3
>
- <hr
style
=
"border-top:1px dotted #ccc;"
/
>
- <div
class
=
"col-md-4"
>
- <div
class
=
"form-group"
>
- <label
>
Firstname</
label
>
- <input
type
=
"text"
id
=
"firstname"
class
=
"form-control"
/
>
- </
div
>
- <div
class
=
"form-group"
>
- <label
>
Lastname</
label
>
- <input
type
=
"text"
id
=
"lastname"
class
=
"form-control"
/
>
- </
div
>
- <div
class
=
"form-group"
>
- <label
>
Address</
label
>
- <input
type
=
"text"
id
=
"address"
class
=
"form-control"
/
>
- </
div
>
- <div
class
=
"form-group"
>
- <button
type
=
"button"
onclick
=
"saveData()"
class
=
"btn btn-primary form-control"
>
Save Data</
button
>
- </
div
>
- </
div
>
- <div
class
=
"col-md-8"
>
- <table
class
=
"table table-bordered"
>
- <thead
class
=
"alert-info"
>
- <tr
>
- <th
>
Firstname</
th
>
- <th
>
Lastname</
th
>
- <th
>
Address</
th
>
- <th
>
Action</
th
>
- </
tr
>
- </
thead
>
- <tbody
id
=
"result"
></
tbody
>
- </
table
>
- </
div
>
- </
div
>
- </
body
>
- <script
src
=
"js/script.js"
></
script
>
- </
html
>
Creating the Script
This code contains the script of the application. This code will delete JSON element when the button is clicked. To do this just copy and write these block of codes as shown below inside the text editor and save it as script.js inside the js directory
- var
data =
[
]
;
- function
saveData(
)
{
- var
firstname =
document.getElementById
(
"firstname"
)
;
- var
lastname =
document.getElementById
(
"lastname"
)
;
- var
address =
document.getElementById
(
"address"
)
;
- if
(
firstname.value
==
""
||
lastname.value
==
""
||
address.value
==
""
)
{
- alert(
"Please complete the required field first!"
)
;
- }
else
{
- var
member =
{
- 'firstname'
:
firstname.value
,
- 'lastname'
:
lastname.value
,
- 'address'
:
address.value
,
- }
;
- data.push
(
member)
;
- displayData(
)
;
- firstname.value
=
""
;
- lastname.value
=
""
;
- address.value
=
""
;
- }
- }
- function
displayData(
)
{
- var
table =
""
;
- for
(
var
i in
data)
{
- table +=
"<tr>"
;
- table +=
"<td>"
- +
data[
i]
.firstname
+
"</td>"
- +
"<td>"
+
data[
i]
.lastname
+
"</td>"
- +
"<td>"
+
data[
i]
.address
+
"</td>"
- +
"<td><button class='btn btn-danger btn-sm' onclick='deleteData("
+
i+
")'>Delete</button></td>"
;
- table +=
"</tr>"
;
- }
- document.getElementById
(
"result"
)
.innerHTML
=
table;
- }
- function
deleteData(
index)
{
- delete
data[
index]
;
- alert(
"You have deleted a row"
)
;
- displayData(
)
;
- }
There you have it we successfully created a Delete JSON Element From An Array using JavaScript. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!
Download
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