Find Cell Matching Value And Return Rownumber

Question

The employee sheet contains the name of the employee in cell C2. The name of the employee should also be on the data sheet in the range B3:B153.

How can I get the ro

Answer 1

Since Google App Script is a JavaScript platform, I can think of two more methods to get the row index. It may be a bit faster because these are built-in Array methods.

Method 1: using Array.prototype.forEach()

function getRowIndexUsingforEach(){
  let term = 'user-1700@example.com';
  var data = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getRange(1, 1, 2000).getValues();
  data.forEach((val, index) => {
     if(val == term){
         Browser.msgBox(index+1); //because Logger.log() takes too long
     }               
  })
}

Method 2: using Array.prototype.findIndex()

function getRowUsingfindIndex(){
  let term = 'user-1700@example.com';
  let data = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getRange(1, 1, 2000).getValues();
  let row = data.findIndex(users => {return users[0] == term});  
  Browser.msgBox(row+1); //because Logger.log() takes too long
}

To see which method will be faster, I ran these two methods and the accepted anwer's method over a column of 22000 rows of data several times. The averages are listed below:

• Using for loop (from Accepted Answer): 2.66ms
• Using Array.prototype.forEach: 11.75ms
• Using Array.prototype.findIndex: 2.00ms

I guess Array.prototype.forEach is not meant to find the index of a match; it is Array.prototype.findIndex that is designed for this purpose