pip-services3-commons-node
Version:
Portable abstractions and patterns for Pip.Services in Node.js
67 lines • 2.44 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
/** @module convert */
/** @hidden */
var _ = require('lodash');
/**
* Converts arbitrary values into longs using extended conversion rules:
* - Strings are converted to floats, then to longs
* - DateTime: total number of milliseconds since unix epoсh
* - Boolean: 1 for true and 0 for false
*
* ### Example ###
*
* let value1 = LongConverter.toNullableLong("ABC"); // Result: null
* let value2 = LongConverter.toNullableLong("123.456"); // Result: 123
* let value3 = LongConverter.toNullableLong(true); // Result: 1
* let value4 = LongConverter.toNullableLong(new Date()); // Result: current milliseconds
*/
var LongConverter = /** @class */ (function () {
function LongConverter() {
}
/**
* Converts value into long or returns null when conversion is not possible.
*
* @param value the value to convert.
* @returns long value or null when conversion is not supported.
*/
LongConverter.toNullableLong = function (value) {
if (value == null)
return null;
if (_.isNumber(value))
return Math.ceil(value);
if (_.isDate(value))
return value.getTime();
if (_.isBoolean(value))
return value ? 1 : 0;
var result = parseFloat(value);
return isNaN(result) ? null : Math.ceil(result);
};
/**
* Converts value into long or returns 0 when conversion is not possible.
*
* @param value the value to convert.
* @returns long value or 0 when conversion is not supported.
*
* @see [[toLongWithDefault]]
*/
LongConverter.toLong = function (value) {
return LongConverter.toLongWithDefault(value, 0);
};
/**
* Converts value into integer or returns default when conversion is not possible.
*
* @param value the value to convert.
* @param defaultValue the default value.
* @returns long value or default when conversion is not supported
*
* @see [[toNullableLong]]
*/
LongConverter.toLongWithDefault = function (value, defaultValue) {
var result = LongConverter.toNullableLong(value);
return result != null ? result : defaultValue;
};
return LongConverter;
}());
exports.LongConverter = LongConverter;
//# sourceMappingURL=LongConverter.js.map