Iterate through column, find match and send email based on cell value - google-apps-script

Question

I have a spreadsheet (here -> https://docs.google.com/spreadsheets/d/1U0A8PmKYxkXn8SrfKOo6XsJb-XxkJNYZqd0QIKkFsP4/edit?usp=sharing) that collects data from forms and perform several if functions to categorize answers.
What I need to do is to send follow up emails (reminders) based on cell value (sheet "Code extension data + Minimum desc. fill", last column "Reminder Minimum descriptions"). In order to do that, I suppose I must loop through the column, find a match ("Keep sending reminder", "Stop sending reminder") and send mail.
But what ends up happening is that the code shoots 73 follow up messages. I don't know 73, if I have only 2 rows with "Keep sending email".
function sendEmail() {
var ss = SpreadsheetApp.openById("1lzc7-WRxEBQc5D_SR0F-d-
9PhQjmVk37UOgBQTGw3_Q");
var sh = ss.getSheetByName('Code extension data + Minimum desc. fill');
var lastRow = sh.getLastRow();
var data = sh.getRange(1,28,lastRow,28).getValues();
for (i=0; i < data.length;i++){
var num = parseInt(data[i]);
if (num = "Keep sending reminder") {
var emailAddress = "email#email.com";
var message = "test body";
var subject = "test subject";
MailApp.sendEmail({
name: "Your Name",
to: emailAddress,
subject: subject,
htmlBody: message
});
}
}
}

Answer 1

Your if statement is comparing a number to a string ("Keep sending reminder") which will never evaluate as true. There is no need to use parseInt for what you are trying to do. Also, you are looping over string[][], so you have to use data[i][columnIndex] to access the column you expect to find "keep sending reminder" in.
function sendEmail() {
var ss = SpreadsheetApp.openById("1lzc7-WRxEBQc5D_SR0F-d-9PhQjmVk37UOgBQTGw3_Q");
var sh = ss.getSheetByName('Code extension data + Minimum desc. fill');
var lastRow = sh.getLastRow();
var data = sh.getRange(1,28,lastRow,28).getValues();
for (var i=0; i < data.length; i++) {
//var num = parseInt(data[i]);
if (data[i][27] === "Keep sending reminder") {
var emailAddress = "email#email.com";
var message = "test body";
var subject = "test subject";
MailApp.sendEmail({
name: "Your Name",
to: emailAddress,
subject: subject,
htmlBody: message
});
}
}
}

Answer 2

Your if statement only has a single equal sign, use == or === even better.