Nie możesz wybrać więcej, niż 25 tematów
Tematy muszą się zaczynać od litery lub cyfry, mogą zawierać myślniki ('-') i mogą mieć do 35 znaków.
42 wiersze
868 B
42 wiersze
868 B
var toNumber = require('./toNumber');
|
|
|
|
/** Used as references for various `Number` constants. */
|
|
var INFINITY = 1 / 0,
|
|
MAX_INTEGER = 1.7976931348623157e+308;
|
|
|
|
/**
|
|
* Converts `value` to a finite number.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.12.0
|
|
* @category Lang
|
|
* @param {*} value The value to convert.
|
|
* @returns {number} Returns the converted number.
|
|
* @example
|
|
*
|
|
* _.toFinite(3.2);
|
|
* // => 3.2
|
|
*
|
|
* _.toFinite(Number.MIN_VALUE);
|
|
* // => 5e-324
|
|
*
|
|
* _.toFinite(Infinity);
|
|
* // => 1.7976931348623157e+308
|
|
*
|
|
* _.toFinite('3.2');
|
|
* // => 3.2
|
|
*/
|
|
function toFinite(value) {
|
|
if (!value) {
|
|
return value === 0 ? value : 0;
|
|
}
|
|
value = toNumber(value);
|
|
if (value === INFINITY || value === -INFINITY) {
|
|
var sign = (value < 0 ? -1 : 1);
|
|
return sign * MAX_INTEGER;
|
|
}
|
|
return value === value ? value : 0;
|
|
}
|
|
|
|
module.exports = toFinite;
|