JavaScript Tutorial | Asynchronous process & Callback Function | Asynchronous JS #2

Learn about callback functions, asynchronous process and callback hell.

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#JavaScriptTutorial #callbackfunction #asynchronousJS

[nishantpatel]

Thank you sir, the contain is super clear to digest the complicated topic "Call-back Function" !

[hamidrezaakbarnezhad]

Tknks❤️ step by step explain and with example an theory defination of all terminology

[keyurpatel]

function
setTimeout(function(){
console.log('fetching data');
var data= 'JSON from the WEB API call';
callback(data)
}, 2000);
}

function displayData(data){
console.log(data);
}

console.log('start');



//displayData(data); // this line does not wait for fetchData to return that is why it returns 'undefined'

console.log('end');


It will print:
start ​​​​
end ​​​
fetching data ​​​
JSON from the WEB API call

[wowtext]

Love your stuff, but (the dreaded but) it would be easier to follow if there was not so much scrolling up and down methinks.