js - regular expression(part2)

let regex = /harry/;

let str = "hrryt is good boy with hrr";

// let result = regex.exec(str);

// console.log("result is: ",result);

// result2 = regex.test(str)

// console.log("result2 is : ", result2);

// if(regex.test(str))

// console.log("string is matched");

// else

// console.log("string not matched");

// let look into metacharacter symbol

regex = /^harrdc/; // ^ means expression will match if string starts with

regex = /harry$/; // $ at the end of the string means "string ends with"

regex = /h.rry/; //matches any one character

regex = /h*rry/; //matches any 0 or more characters

regex = /ha?rryi?t/; //? after character means that character is optional

// regex = /h\*rry/;

if(regex.test(str))

console.log("string is matched");

else

console.log("string not matched");