So, I'm not much of a coder to be honest, but I've managed to fumble my way through counting cell background colour, but struggling to get it to work for counting cells where the font is bold. I've detailed my function below, which counts only 6 cells with a bold font style, but there is 13 cells with a bold font style.
function countboldcells() {
var book = SpreadsheetApp.getActiveSpreadsheet();
var sheet = book.getActiveSheet();
var range_input = sheet.getRange("E2:S7");
var range_output = sheet.getRange("G14");
var cell_styles = range_input.getFontStyle();
var count = 0;
for(var r = 0; r < cell_styles.length; r++) {
for(var c = 0; c < cell_styles[0].length; c++) {
if(cell_styles.isBold = true) {
count = count + 1;
}
}
range_output.setValue(count);
}
}