What does parseInt do in JavaScript?

The parseInt method parses a value as a string and returns the first integer. 2 = binary, 8 = octal, 10 = decimal, 16 = hexadecimal. If radix is omitted, JavaScript assumes radix 10. If the value begins with "0x", JavaScript assumes radix 16. If the first character cannot be converted, NaN is returned. Leading and trailing spaces are ignored.

What is number parseInt?

Number.parseInt(string) Number.parseInt(string, radix) The value to parse, coerced to a string. Leading whitespace in this argument is ignored. An integer between 2 and 36 that represents the radix (the base in mathematical numeral systems) of the string .

What is HTML parsing?

Parsing means analyzing and converting a program into an internal format that a runtime environment can actually run, for example the JavaScript engine inside browsers. The browser parses HTML into a DOM tree. HTML parsing involves tokenization and tree construction. HTML tokens include start and end tags, as well as attribute names and values.

Why does parseInt not compile if I use JavaScript?

If you use JavaScript, it will coerce the number into a string before the function receives the argument (which is what causes the rounding) and if you use TypeScript it won't even compile because it's wrong. developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… parseInt converts to a integer number, that is, it strips decimals.