JS Practice — Built-in Objects

Number.parseInt() — '42' → 42

📖 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()

Number.parseInt(string, radix) parses a string and returns an integer. It is the same as the global parseInt().

Number.parseInt('42')  // → 42

💡 Hints (1)

• Always specify the radix to avoid ambiguity.