JS Practice — Built-in Objects

String.prototype.startsWith() — basic match

📖 Usage Example

const str = 'Hello, World!'
str.startsWith('Hello')         // → true
str.startsWith('World')         // → false
str.startsWith('World', 7)      // → true

Use startsWith() to check if a string begins with a specific prefix, with an optional start position.

String.prototype.startsWith()

str.startsWith(searchString) returns true if str begins with searchString.

Challenge: Implement startsWithHello(str) that checks if a string starts with 'hello'.

startsWithHello('hello world') // → true
startsWithHello('world hello') // → false

💡 Hints (1)

• `str.startsWith(searchString)` returns `true` when `str` begins with `searchString`.