How to make this script work

Question

Help me to make this script work, please!
function(){
app.findGrepPreferences.firstLineIndent  = "8 mm";
app.findGrepPreferences.leftIndent  = "8 mm";
app.changeGrepPreferences.firstLineIndent  = "8 mm";
app.changeGrepPreferences.leftIndent  = "16 mm";
app.selection[0].changeGrep();
app.findGrepPreferences.leftIndent  = "16 mm";
app.changeGrepPreferences.leftIndent  = "24 mm";
app.selection[0].changeGrep();

Answer 1

Hi,
Its already replied, see below code:
app.findGrepPreferences = app.changeGrepPreferences = null;
app.findGrepPreferences.firstLineIndent  = "8 mm";
app.findGrepPreferences.leftIndent  = "8 mm";
app.changeGrepPreferences.firstLineIndent  = "8 mm";
app.changeGrepPreferences.leftIndent  = "16 mm";
app.changeGrep();
app.findGrepPreferences = app.changeGrepPreferences = null;
First run the above code, again you want to change leftIndent from '16 mm' to '24 mm' run below code:
app.findGrepPreferences = app.changeGrepPreferences = null;
app.findGrepPreferences.leftIndent  = "16 mm";
app.changeGrepPreferences.leftIndent  = "24 mm";
app.changeGrep();
app.findGrepPreferences = app.changeGrepPreferences = null;
by
hasvi