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AJAX vs. Fetch: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Published on February 16, 2024
AJAX (Asynchronous JavaScript and XML) enables web pages to update asynchronously by exchanging data with a server. Fetch is a modern API in JavaScript for making network requests offering a more flexible & powerful way to make requests & handle response.
AJAX vs. Fetch

Key Differences

AJAX, which stands for Asynchronous JavaScript and XML, is a set of web development techniques allowing web applications to send and retrieve data from a server asynchronously, without interfering with the display and behavior of the existing page. Fetch, on the other hand, is a newer web API used for asynchronous network requests, providing a more modern and powerful alternative to AJAX, particularly in handling promises.
Shumaila Saeed
Shumaila Saeed
Feb 16, 2024
AJAX primarily uses the XMLHttpRequest object for server communication and can handle different data types like XML, JSON, HTML, and text. Fetch, introduced as part of the ES6 specification, uses Promises, making it easier to write asynchronous code, and is more versatile in terms of configuring requests and handling responses.
Shumaila Saeed
Shumaila Saeed
Feb 16, 2024
In terms of complexity, AJAX can be more cumbersome to write and manage, especially for complex operations and error handling. Fetch provides a cleaner, more straightforward syntax and improved error handling capabilities, simplifying the process of making network requests and processing responses.
Shumaila Saeed
Shumaila Saeed
Feb 16, 2024
AJAX has been widely used since the early 2000s and is supported by all browsers, including older ones. Fetch is relatively new and may not be supported in some older browsers, but it can be polyfilled to work across different environments. Fetch also supports modern features like CORS and headers that are not as straightforward with AJAX.
Shumaila Saeed
Shumaila Saeed
Feb 16, 2024
AJAX is typically used in conjunction with other technologies like HTML and CSS to create dynamic web applications. Fetch is part of the JavaScript API, providing a more unified and modern approach to handling network requests, making it a popular choice for contemporary web development.
Shumaila Saeed
Shumaila Saeed
Feb 16, 2024
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Comparison Chart

Basic Function

Asynchronous data exchange with server
Making network requests asynchronously
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Core Technology

XMLHttpRequest
Promises in JavaScript
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Error Handling

More complex
Easier with Promises
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Browser Support

Broad, including older browsers
Modern browsers, with polyfills for older ones
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Syntax

Can be cumbersome
Cleaner, more straightforward
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Feb 16, 2024
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AJAX and Fetch Definitions

AJAX

Employs XMLHttpRequest for server interaction.
AJAX requests data using XMLHttpRequest.
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Jan 21, 2024

Fetch

Uses Promises for network communication.
Fetch API simplifies handling asynchronous requests.
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Jan 21, 2024

AJAX

Integral to interactive web applications.
AJAX revolutionized web app development.
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Jan 21, 2024

Fetch

Supports advanced features.
Fetch easily handles headers and CORS.
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Jan 21, 2024

AJAX

Allows web pages to update without reloading.
We use AJAX for live search results.
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Jan 21, 2024
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Fetch

To come or go after and take or bring back
The puppy fetched the stick that I had tossed.
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Jan 19, 2024

AJAX

Handles XML, JSON, and more.
AJAX can process various data formats.
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Jan 21, 2024

Fetch

To cause to come.
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Jan 19, 2024

AJAX

Compatible with legacy browsers.
AJAX works well in older web browsers.
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Jan 21, 2024

Fetch

To bring in as a price
Fetched a thousand dollars at auction.
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Jan 19, 2024

AJAX

The son of Telamon of Salamis and a warrior of great stature and prowess who fought against Troy.
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Jan 19, 2024

Fetch

To interest or attract.
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Jan 19, 2024

AJAX

The son of Ileus of Locris and a warrior of small stature and arrogant character who fought against Troy.
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Jan 19, 2024

Fetch

To draw in (breath); inhale.
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Jan 19, 2024

AJAX

(Polari) Nearby, over there
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Jan 19, 2024

Fetch

To bring forth (a sigh, for example) with obvious effort.
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AJAX

A toilet.
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Fetch

(Informal) To deliver (a blow) by striking; deal.
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Jan 19, 2024

AJAX

(poker slang) An ace and a jack as a starting hand in Texas hold 'em.
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Jan 19, 2024

Fetch

(Nautical) To arrive at; reach
Fetched port after a month at sea.
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Jan 19, 2024

AJAX

A mythical Greek hero; a warrior who fought against Troy in the Iliad
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Jan 19, 2024

Fetch

To go after something and return with it.
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Jan 19, 2024

Fetch

To retrieve killed game. Used of a hunting dog.
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Jan 19, 2024

Fetch

To take an indirect route.
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Jan 19, 2024

Fetch

To hold a course.
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Fetch

To turn about; veer.
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Fetch

The act or an instance of fetching.
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Jan 19, 2024

Fetch

A stratagem or trick.
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Fetch

The distance over which a wind blows.
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Jan 19, 2024

Fetch

The distance traveled by waves with no obstruction.
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Jan 19, 2024

Fetch

A ghost; an apparition.
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Jan 19, 2024

Fetch

A doppelgänger.
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Jan 19, 2024

Fetch

To retrieve; to bear towards; to go and get.
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Shumaila Saeed
Jan 19, 2024

Fetch

To obtain as price or equivalent; to sell for.
If you put some new tyres on it, and clean it up a bit, the car should fetch about $5,000
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Shumaila Saeed
Jan 19, 2024

Fetch

(nautical) To bring or get within reach by going; to reach; to arrive at; to attain; to reach by sailing.
To fetch headway or sternway
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Jan 19, 2024

Fetch

(intransitive) To bring oneself; to make headway; to veer; as, to fetch about; to fetch to windward.
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Jan 19, 2024

Fetch

To take (a breath), to heave (a sigh)
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Jan 19, 2024

Fetch

To cause to come; to bring to a particular state.
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Fetch

(obsolete) To recall from a swoon; to revive; sometimes with to.
To fetch a man to
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Fetch

To reduce; to throw.
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Fetch

(archaic) To accomplish; to achieve; to perform, with certain objects or actions.
To fetch a compass;
To fetch a leap
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Jan 19, 2024

Fetch

To make (a pump) draw water by pouring water into the top and working the handle.
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Jan 19, 2024

Fetch

An act of fetching, of bringing something from a distance.
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Jan 19, 2024

Fetch

An act of fetching data.
A fetch from a cache
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Jan 19, 2024

Fetch

The object of fetching; the source of an attraction; a force, propensity, or quality which attracts.
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Jan 19, 2024

Fetch

An area over which wind is blowing (over water) and generating waves.
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Jan 19, 2024

Fetch

The length of such an area; the distance a wave can travel across a body of water (without obstruction).
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Jan 19, 2024

Fetch

A stratagem or trick; an artifice.
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Jan 19, 2024

Fetch

The apparition of a living person; a person's double, the sight of which is supposedly a sign that they are fated to die soon, a doppelganger; a ghost]], a spectre.
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Jan 19, 2024

Fetch

(Utah) Minced oath for fuck.
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Jan 19, 2024

Fetch

To bear toward the person speaking, or the person or thing from whose point of view the action is contemplated; to go and bring; to get.
Time will run back and fetch the age of gold.
He called to her, and said, Fetch me, I pray thee, a little water in a vessel, that I may drink. And as she was going to fetch it he called to her, and said, Bring me, I pray thee, a morsel of bread in thine hand.
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Jan 19, 2024

Fetch

To obtain as price or equivalent; to sell for.
Our native horses were held in small esteem, and fetched low prices.
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Jan 19, 2024

Fetch

To recall from a swoon; to revive; - sometimes with to; as, to fetch a man to.
Fetching men again when they swoon.
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Shumaila Saeed
Jan 19, 2024

Fetch

To reduce; to throw.
The sudden trip in wrestling that fetches a man to the ground.
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Shumaila Saeed
Jan 19, 2024

Fetch

To bring to accomplishment; to achieve; to make; to perform, with certain objects; as, to fetch a compass; to fetch a leap; to fetch a sigh.
I'll fetch a turn about the garden.
He fetches his blow quick and sure.
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Jan 19, 2024

Fetch

To bring or get within reach by going; to reach; to arrive at; to attain; to reach by sailing.
Meantine flew our ships, and straight we fetchedThe siren's isle.
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Jan 19, 2024

Fetch

To cause to come; to bring to a particular state.
They could n't fetch the butter in the churn.
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Jan 19, 2024

Fetch

To bring one's self; to make headway; to veer; as, to fetch about; to fetch to windward.
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Shumaila Saeed
Jan 19, 2024

Fetch

A stratagem by which a thing is indirectly brought to pass, or by which one thing seems intended and another is done; a trick; an artifice.
Every little fetch of wit and criticism.
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Shumaila Saeed
Jan 19, 2024

Fetch

The apparation of a living person; a wraith.
The very fetch and ghost of Mrs. Gamp.
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Jan 19, 2024

Fetch

The unobstructed region of the ocean over which the wind blows to generate waves.
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Jan 19, 2024

Fetch

The length of such a region.
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Jan 19, 2024

Fetch

Go or come after and bring or take back;
Get me those books over there, please
Could you bring the wine?
The dog fetched the hat
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Jan 19, 2024

Fetch

Be sold for a certain price;
The painting brought $10,000
The old print fetched a high price at the auction
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Jan 19, 2024

Fetch

Take away or remove;
The devil will fetch you!
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Jan 19, 2024

Fetch

Offers a cleaner approach to requests.
Fetch provides a more readable syntax than AJAX.
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Shumaila Saeed
Jan 21, 2024

Fetch

Improved error management.
Fetch makes error handling more straightforward.
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Jan 21, 2024

Fetch

Suited for modern applications.
We use Fetch in our latest web projects.
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Jan 21, 2024

Repeatedly Asked Queries

Do older browsers support AJAX?

Yes, AJAX is compatible with older browsers.
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Feb 16, 2024

Is Fetch part of JavaScript?

Yes, it's a modern API in JavaScript.
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Feb 16, 2024

Can AJAX handle JSON?

Yes, AJAX can process JSON data.
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Feb 16, 2024

Is Fetch easier to use than AJAX?

Fetch has a simpler, more modern syntax.
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Feb 16, 2024

Can Fetch replace AJAX?

Fetch can be used as a more modern alternative to AJAX.
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Feb 16, 2024

What does AJAX stand for?

Asynchronous JavaScript and XML.
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Feb 16, 2024

Can AJAX send data to a server?

Yes, AJAX can send and retrieve data asynchronously.
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Feb 16, 2024

What is XMLHttpRequest in AJAX?

It's the object AJAX uses for server communication.
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Feb 16, 2024

Does Fetch support Promises?

Yes, Fetch is built on Promises.
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Feb 16, 2024

Is Fetch supported in all browsers?

Fetch is supported in most modern browsers.
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Feb 16, 2024

How does Fetch handle responses?

Fetch uses Promises for streamlined response processing.
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Feb 16, 2024

Does Fetch require polyfills for older browsers?

Yes, to ensure compatibility with older browsers.
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Feb 16, 2024

Can I use AJAX with frameworks like React?

Yes, though Fetch is more commonly used in modern frameworks.
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Feb 16, 2024

Is AJAX still relevant?

Yes, it's still used in many web applications.
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Feb 16, 2024

What makes Fetch more modern than AJAX?

Fetch's use of Promises and cleaner syntax.
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Feb 16, 2024

Can AJAX update a web page without reloading?

Yes, that's a key feature of AJAX.
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Shumaila Saeed
Feb 16, 2024

Are AJAX and Fetch mutually exclusive?

No, they can be used together, but Fetch is often preferred.
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Feb 16, 2024

Do AJAX and Fetch serve the same purpose?

Both are used for asynchronous network requests, but Fetch offers a more modern approach.
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Shumaila Saeed
Feb 16, 2024

Is JSON or XML better with AJAX?

JSON is more commonly used due to its simplicity.
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Feb 16, 2024

Is error handling different in Fetch?

Fetch provides more straightforward error handling with Promises.
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Feb 16, 2024

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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