fadeOutBox();
fadeInInfoBlock();

async function runInOrder(){
    await fadeOutBox();
    await fadeInInfoBlock();
}

function fadeOutBox() {
  // do stuff
  fadeInInfoBlock()
}

fadeOutBox()

function fadeOutBox(){
   return new Promise(function(resolve, reject) {
   //True statement
    resolve('true')
   });
  }

fadeOutBox.then(function(value) {
 console.log(value);
 fadeInInfoBlock();
 })

async function syncFn(){
    await fadeOutBox();
    await fadeInInfoBlock();
}