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number.ts
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number.ts
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import SchemaType from '../schematype';
import ValidationError from '../error/validation';
/**
* Number schema type.
*/
class SchemaTypeNumber extends SchemaType<number> {
/**
* Casts a number.
*
* @param {*} value
* @param {Object} data
* @return {Number}
*/
cast(value_: Exclude<unknown, undefined | null>, data?: unknown): number;
cast(value_?: unknown, data?: unknown): number | undefined;
cast(value_?: unknown, data?: unknown): number | undefined {
const value = super.cast(value_, data);
if (value == null || typeof value === 'number') return value as number | undefined;
return +value;
}
/**
* Validates a number.
*
* @param {*} value
* @param {Object} data
* @return {Number|Error}
*/
validate(value_?: unknown, data?: unknown): number {
const value = super.validate(value_, data);
if (value !== undefined && (typeof value !== 'number' || isNaN(value))) {
throw new ValidationError(`\`${value}\` is not a number!`);
}
return value as number;
}
/**
* Adds value to a number.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$inc(value: number | undefined, update: number): number {
return value ? value + update : update;
}
/**
* Subtracts value from a number.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$dec(value: number | undefined, update: number): number {
return value ? value - update : -update;
}
/**
* Multiplies value to a number.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$mul(value: number | undefined, update: number): number {
return value ? value * update : 0;
}
/**
* Divides a number by a value.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$div(value: number | undefined, update: number): number {
return value ? value / update : 0;
}
/**
* Divides a number by a value and returns the remainder.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$mod(value: number | undefined, update: number): number {
return value ? value % update : 0;
}
/**
* Updates a number if the value is greater than the current value.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$max(value: number | undefined, update: number): number {
return update > value ? update : value;
}
/**
* Updates a number if the value is less than the current value.
*
* @param {Number} value
* @param {Number} update
* @return {Number}
*/
u$min(value: number | undefined, update: number): number {
return update < value ? update : value;
}
}
export default SchemaTypeNumber;