JS Practice — Built-in Objects

Number() — converting strings to numbers

📖 Usage Example

// Convert a value to a number
Number('42')    // → 42
Number(true)    // → 1
Number(false)   // → 0
Number('')      // → 0

Use the Number() function to explicitly convert a value to a numeric type, which is more predictable than implicit coercion.

Number() Constructor

Number(value) converts a value to a number primitive.

Challenge: Implement strToNum(str) that converts a string to a number using Number().

strToNum('42')    // → 42
strToNum('3.14')  // → 3.14

💡 Hints (1)