Google Apps Script - Sheet to Array of Objects

code.gs

const sheetToObjects = (sheet, headerRow=1) => {
  
  const arrayToObject = (array,headers) => {
    return array.reduce((obj,value,index) =>{
      return {...obj,[headers[index]]: value}
    }, {})
  }
  
  const sheetValues = sheet.getDataRange().getValues()
  const dataValues = sheetValues.slice(headerRow-1)
  const headers = dataValues.shift()
  return dataValues.map(row => arrayToObject(row,headers))
}