Async await in javascript

async,tipjs,function

const fs = require('fs')
async function readFile() {
  try {    
    var f1 = await readFileWithPromise('/etc/passwd')
    console.log(f1.toString())
    var f2 = await readFileWithPromise('/etc/profile')
    console.log(f2.toString())
  } catch (err) {
    console.log(err)
  }
}

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Spread Operator for Objects

Using the spread operator during an Object declaration will assign the properties of the referenced Object to the new Object.

group by property javascript use reduce

group by property javascript use reduce

serialize Form

Sử dụng formdata constructor để convert form, FormData, array.from(). Kết hợp window.encodeURIComponent() để encode từng value trong form.

Converting Object to an Array

Converting Object to an Array

Callback in javascript

Callback in javascript