class and id in react

String(date.getMinutes()).padStart(2, “0”); sets expected result as having two digits, if one is missing replace it with 0; Here is what the above code is Doing: 1. We create a new date object with the current date and time. 2. We get the hours from the date object and convert it to a string. 3. We…

var xhr = $.ajax({ type: “POST”, url: “some.php”, data: “name=John&location=Boston”, success: function(msg){ alert( “Data Saved: ” + msg ); } }); //kill the request xhr.abort() Here is what the above code is Doing: 1. Create a new AJAX request. 2. Send the request. 3. If the request is successful, execute the callback function. 4. If…

let [ posts, setPosts ] = useState([]) useEffect(() => { async function getResults() { const results = await axios(‘https://jsonplaceholder.typicode.com/posts’); setPosts(results.data) } getResults() },[]) console.log(posts) Here is what the above code is Doing: 1. We’re using the useState hook to create a state variable called posts and a function to update that variable called setPosts. 2….

$(document).ready(function() {     $(‘#example’).DataTable( {         “processing”: true,         “serverSide”: true,         “ajax”: “../server_side/scripts/server_processing.php”     } ); } ); Here is what the above code is Doing: 1. The first line is a jQuery function that waits for the document to be ready before executing the code inside the function. 2. The second line is a DataTables function that initializes…

if (__DEV__) { console.log(‘Development’); } else { console.log(‘Production’); } Here is what the above code is Doing: 1. We’re using the __DEV__ global variable to check if we’re in development mode. 2. If we are, we log ‘Development’ to the console. 3. If we’re not, we log ‘Production’ to the console. Now, let’s see what…

const sum = await [ Promise.resolve(1), Promise.resolve(1), Promise.resolve(1) ].reduce(async (previousPromise, itemPromise) => { const sum = await previousPromise; const item = await itemPromise; return sum + item; }, Promise.resolve(0)) // sum === 3 Here is what the above code is Doing: 1. We have an array of promises. 2. We call reduce on the array,…