How to write data into a specific range based on a variable - google-apps-script

Question

In the image below, Table 1 is an editable table where a user can change the values. Table 2 is a master table that I want to update with the changed values from Table 1. The unique identifier for each table is the Full Name (Column A). In this example, I'd like to:
Get the data from Table 1 associated with the Full Name entered into B1 (Washington, George).
Update the right record in Table 2 (row 13) with the values from Table 1.
Table 1 and Table 2
I know that I can use getvalues() and setvalues() to get the data from Table 1 and write it into Table 2. I'm having trouble figuring out how to get the right range (row 6 in Table 1 for the getvalues() function and row 13 in Table 2 for the setvalues() function) based on the value in B1 (Washington, George).
If I were using Excel VBA, I'd do a search in Table 1 and Table 2 for the value in B1 and then select the entire row. I've read articles about how to get a range based on A1 notation, user selection, and column/row identification, but I can't find anything related to getting a range relative to the location of a specific value in the data set.

Answer 1

Use this to read the data in the sheet:
const sheet = SpreadsheetApp.getActive().getSheetByName('Sheet1');
const data = sheet.getDataRange().getValues();
Follow with this to find the row index of searchValue:
const keys = data.map(row => row[0]);
const rowIndex = keys.indexOf(searchValue);
To write a values array in the row, use this:
sheet
.getRange(rowIndex, 1)
.offset(0, 0, 1, values.length)
.setValues(values);
Some of the best resources for learning Google Apps Script include the Beginner's Guide, the New Apps Script Editor guide, the Fundamentals of Apps Script with Google Sheets codelab, the Extending Google Sheets page, javascript.info, Mozilla Developer Network and Apps Script at Stack Overflow.