<script>
var
text1 =
"Welcome to GeeksforGeeks "
;
var
text2 =
"The numbers are - 0, 1, 2, "
+
"3, 4, 5, 6, 7, 8, 9. The "
+
"special characters are - @,"
+
" #, $, %, ^, &, *"
;
var
regexp =
new
RegExp(
'[geeks]'
);
console.log(text1.match(regexp));
var
regexp =
new
RegExp(
'[^geeks]'
);
console.log(text1.match(regexp));
var
regexp =
new
RegExp(
'[0-9]'
);
console.log(text2.match(regexp));
var
regexp =
new
RegExp(
'[geeks]*'
);
console.log(text1.match(regexp));
var
regexp =
new
RegExp(
's{2}'
);
console.log(text1.match(regexp));
var
regexp1 = /(\w+)\s(\w+)\s(\w+)/
let newtext = text1.replace(regexp1,
'$3 $2 $1'
);
console.log(newtext);
var
regexp1 = /(\d+)/;
let newtext1 = text2.replace(regexp1,
'number'
);
console.log(newtext1);
var
regexp2 = /(\s+)/;
console.log(text2.replace(regexp2,
'\t'
));
</script>