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[Solved]How can I make a javascript function that return ajax response?

If use ajax in a javascript code many time then how can I make a function so that I can use it as function and call it when necessary (no jQuery)

3rd May 2020, 3:03 PM
Souptik Nath
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13 Answers
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Code : const dataReady = (link) => { return new Promise((resolve, reject) => { $.ajax({ url: data', dataType: 'json', type: 'GET', success : data => {resolve(data)}, error: () => {reject('Something went wrong!');} }); }); } Usage : Pass the link as the argument of the function, and then use the '.then()' function to get the data, like below : dataReady('https://data-link.com').then(data => { console.log(data); });
3rd May 2020, 3:28 PM
Arb Rahim Badsa
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+ 2
Sure, here is the explanation :)) I am using the .ajax method to set an ajax request. $.ajax(); This method takes an objective as an argument which contains information about the request like url, dataType, etc. $.ajax({ url : 'url', dataType: 'json' }); However, most importantly it has success and error property : $.ajax({ url : 'url', dataType: 'json', success: (data) => { console.log("I got the data"); console.log(data); }, error: (err) => { console.log("Something went wrong"); console.log(err); } });
3rd May 2020, 3:49 PM
Arb Rahim Badsa
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+ 1
Arb Rahim Badsa What is the meaning of the line return new Promise ((resolve,reject) Can we do this without jQuery? Promise means?
3rd May 2020, 3:52 PM
Souptik Nath
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+ 1
Sure, it is a new addition of ES6. You can now make promise with only javascript! Promise is actually a better way to fetch data from. The function is just returning a new javascript Promise which resolving the data we get from the ajax request. I suggest you to research a bit on what is promise, if you are curious :))
3rd May 2020, 3:57 PM
Arb Rahim Badsa
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+ 1
async function fetchApi () { let response = await fetch(url); if (response.ok) { // if HTTP-status is 200-299 // get the response body (the method explained below) let json = await response.json(); // or response.text() for get text string console.log(JSON.stringify(json)); // document.body.innerHTML = contents; } else { alert("HTTP-Error: " + response.status); } } fetchApi()
3rd May 2020, 5:27 PM
Calviղ
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+ 1
Function takes argument of api endpoint
3rd May 2020, 5:40 PM
Calviղ
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+ 1
SOUPTIK NATH Your code was almost correct :)) Just a bit correction : this.status == 200 Not this.status == 20 Here's the code :)) https://code.sololearn.com/WApBRrc6CHB8/?ref=app
4th May 2020, 3:47 AM
Arb Rahim Badsa
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0
Aren't you allowed to use jQuery? I can explain you the function if you are allowed to use :))
3rd May 2020, 3:13 PM
Arb Rahim Badsa
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3rd May 2020, 3:18 PM
Souptik Nath
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Arb Rahim Badsa Can you please explain cause I don't know jQuery
3rd May 2020, 3:40 PM
Souptik Nath
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3rd May 2020, 4:11 PM
Souptik Nath
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0
Calviղ Is there an api for that?
3rd May 2020, 5:38 PM
Souptik Nath
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0
Calviղ I am not able to understand please explain
3rd May 2020, 5:41 PM
Souptik Nath
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