make a variable the text inside a cell - email

Question

I am sending emails from a spreadsheet. I want the value of B2 to be the body of the email. This way I can type into cell B2 what I want to say in the message. I have the script set to send the charts and data contained in the sheet, and that works. But when I tried to set the body of the email as the value of cell B2, it simply sends a message that says "Range" and then adds the charts.
My code looks like this thus far
function emailParentsUpdates(sheet,emails,emailSubject){
var targetspreadsheet = SpreadsheetApp.getActiveSpreadsheet();
var sheet = targetspreadsheet.getActiveSheet();
var emailSubject = 'Grades Update';
var charts = sheet.getCharts();
var startRow = 1; // First row of data to process
var numRows = 1; // Number of rows to process
var dataRange = sheet.getRange(startRow, 1, numRows, 1)
var data = dataRange.getValues();
for (i in data) {
var row = data[i];
var emailAddress = row[0]; // First column
var teacherEmail = "efazekas#dcsdk12.org"
if(charts.length==0){
MailApp.sendEmail({
to: teacherEmail,
subject: "ERROR:"+emailSubject,
htmlBody: "No charts in the spreadsheet"});
return;
}
var chartBlobs=new Array(charts.length);
//this is where the issue is. I need the email body to be the value, the actual words, of cell B2
var emailBody = sheet.getRange('B2');
var emailImages={};
for(var i=0;i<charts.length;i++){
var builder = charts[i].modify();
builder.setOption('vAxis.format', '#');
var newchart = builder.build();
chartBlobs[i]= newchart.getAs('image/png');
emailBody= emailBody + "<p align='center'><img src='cid:chart"+i+"'></p>";
emailImages["chart"+i]= chartBlobs[i];
}
MailApp.sendEmail({
to: emailAddress,
subject: emailSubject,
htmlBody: emailBody,
inlineImages:emailImages
});
}
}
I know it's rough and maybe not very succinct or elegant, but it does what I need except for the whole email body issue.

Answer 1

function getB2Value(){
var sheet = SpreadsheetApp.getActiveSheet();
var range = sheet.getRange('B2');
return range.getValue();
}
getRange() returns a range, you need to call getValue() to get a reference to the value of the cell. I.e:
var emailBody = sheet.getRange('B2').getValue();