Converting Strings to Numbers

Parsing numbers from strings.

Examples

Converting various types to a Number.

console.log(Number("10")); // 10
console.log(Number(true)); // 1
console.log(Number("10 20")); // NaN

Parsing an integer from the start of a string.

console.log(parseInt("10.33")); // 10
console.log(parseInt("10 20 30")); // 10
console.log(parseInt("10 years")); // 10

Parsing a float from the start of a string.

console.log(parseFloat("10.33")); // 10.33
console.log(parseFloat("10 20 30")); // 10

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