locutus/esm/php/_helpers/_php_cast_int.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function _php_cast_int(value) {
    // original by: Rafał Kukawski
    if (typeof value === 'number') {
        if (isNaN(value) || !isFinite(value)) {
            // from PHP 7, NaN and Infinity are casted to 0
            return 0;
        }
        return value < 0 ? Math.ceil(value) : Math.floor(value);
    }
    if (typeof value === 'string') {
        return parseInt(value, 10) || 0;
    }
    // Behaviour for types other than float, string, boolean
    // is undefined and can change any time.
    // To not invent complex logic
    // that mimics PHP 7.0 behaviour
    // casting value->bool->number is used
    return +!!value;
}