react-day-picker
Version:
Customizable Date Picker for React
65 lines • 2.08 kB
JavaScript
/**
* Checks if the given value is of type {@link DateInterval}.
*
* @param matcher - The value to check.
* @returns `true` if the value is a {@link DateInterval}, otherwise `false`.
* @group Utilities
*/
export function isDateInterval(matcher) {
return Boolean(matcher &&
typeof matcher === "object" &&
"before" in matcher &&
"after" in matcher);
}
/**
* Checks if the given value is of type {@link DateRange}.
*
* @param value - The value to check.
* @returns `true` if the value is a {@link DateRange}, otherwise `false`.
* @group Utilities
*/
export function isDateRange(value) {
return Boolean(value && typeof value === "object" && "from" in value);
}
/**
* Checks if the given value is of type {@link DateAfter}.
*
* @param value - The value to check.
* @returns `true` if the value is a {@link DateAfter}, otherwise `false`.
* @group Utilities
*/
export function isDateAfterType(value) {
return Boolean(value && typeof value === "object" && "after" in value);
}
/**
* Checks if the given value is of type {@link DateBefore}.
*
* @param value - The value to check.
* @returns `true` if the value is a {@link DateBefore}, otherwise `false`.
* @group Utilities
*/
export function isDateBeforeType(value) {
return Boolean(value && typeof value === "object" && "before" in value);
}
/**
* Checks if the given value is of type {@link DayOfWeek}.
*
* @param value - The value to check.
* @returns `true` if the value is a {@link DayOfWeek}, otherwise `false`.
* @group Utilities
*/
export function isDayOfWeekType(value) {
return Boolean(value && typeof value === "object" && "dayOfWeek" in value);
}
/**
* Checks if the given value is an array of valid dates.
*
* @private
* @param value - The value to check.
* @param dateLib - The date utility library instance.
* @returns `true` if the value is an array of valid dates, otherwise `false`.
*/
export function isDatesArray(value, dateLib) {
return Array.isArray(value) && value.every(dateLib.isDate);
}
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