JS Practice — Built-in Objects

Number.parseInt() — binary string with radix 2

📖 Usage Example

// Parse a string to an integer with optional base
Number.parseInt('42px')       // → 42
Number.parseInt('0xff', 16)   // → 255
Number.parseInt('10', 2)      // → 2

Use Number.parseInt() to convert a string to an integer, optionally specifying a radix for binary, octal, or hexadecimal input.

Number.parseInt() — Binary

Use radix 2 to parse binary strings.

Number.parseInt('10', 2)  // → 2

💡 Hints (1)

• Binary uses base 2 with only digits 0 and 1.