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TypeScript 2021-09-25 09:09:04
array of objects create common key as a property and create array of objects
var data = [{ message: 'This is a test', from_user_id: 123, to_user_id: 567 }, { message: 'Another test.', from_user_id: 123, to_user_id: 567 }, { message: 'A third test.', from_user_id: '456', to_user_id: 567 }], groups = Object.create(null), res... Add solution -
Javascript 2021-09-23 21:17:04
DocumentFragment
var list = document.querySelector('#list') var fruits = ['Apple', 'Orange', 'Banana', 'Melon'] var fragment = new DocumentFragment() fruits.forEach(function (fruit) { var li = document.createElement('li') li.innerHTML = fruit fragment.appendChild(... Add solution -
Javascript 2021-09-23 00:27:02
js socket.emit
var socket = io.connect('http://localhost'); socket.emit('my other event', { my: 'data' }); //server side io.sockets.on('connection', function (socket) { socket.on('my other event', function (data) { console.log(data); }); }); //sending data from ... Add solution -
TypeScript 2021-09-22 18:09:03
mongodb move documents to another collection
function insertBatch(collection, documents) { var bulkInsert = collection.initializeUnorderedBulkOp(); var insertedIds = []; var id; documents.forEach(function(doc) { id = doc._id; // Insert without raising an error for duplicates bulk... Add solution -
Javascript 2021-09-22 13:01:02
javascript format number 2 digits
var numarr = [8, 32, 128] var formatted = [] //create three numbers of different lengths numarr.forEach(num => { formatted.push( num.toLocaleString('en-US', {//this is the function that formats the numbers minimumIntegerDigits: 2, //change ... Add solution