filter records by keyword

Question

Hi,

 

my requirement is filter the records on typing in keyword in textbox. 

 

EX:

 

string:Test Record

string :filter Test 

string: Record1

 

 if i type 'T'  only  Test Record should populate.

if i type 'R'  Record1 should populate.

 

i tried below 

 

string.match('T')-it will match the  string having 'T'

 

but i need to filter -if filter search is 'T' or 'Te' or 'Tes'

 

Expected:string starting with 'T' or 'Te' or 'Tes' should populate (i.e Test Record not filter Test)