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Monday, February 3, 2025

3 Elementary Ideas to Absolutely Perceive how the Fetch API Works | by Jay Cruz


Cyberpunk-inspired scene with a cyborg Pitbull dog playing fetch.
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Understanding the Fetch API may be difficult, notably for these new to JavaScript’s distinctive method to dealing with asynchronous operations. Among the many many options of contemporary JavaScript, the Fetch API stands out for its potential to deal with community requests elegantly. Nevertheless, the syntax of chaining .then() strategies can appear uncommon at first look. To completely grasp how the Fetch API works, it is vital to know three core ideas:

In programming, synchronous code is executed in sequence. Every assertion waits for the earlier one to complete earlier than executing. JavaScript, being single-threaded, runs code in a linear trend. Nevertheless, sure operations, like community requests, file system duties, or timers, may block this thread, making the person expertise unresponsive.

Right here’s a easy instance of synchronous code:

operate doTaskOne() {
console.log('Activity 1 accomplished');
}

operate doTaskTwo() {
console.log('Activity 2 accomplished');
}

doTaskOne();
doTaskTwo();
// Output:
// Activity 1 accomplished
// Activity 2 accomplished



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