@eddaic/nestjs-decorators/string/transformer/to-null.transformer.js

Additional decorators intended for use with NestJS framework.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toNull = toNull;
exports.ToNull = ToNull;
const class_transformer_1 = require("class-transformer");
/**
 * Returns `null` value for `null` string (case insensitive),
 * or the value otherwise
 * @param value
 * @returns
 */
function toNull(value) {
    if (value === null) {
        return null;
    }
    else if (typeof value === 'string') {
        return value.toLowerCase() === 'null' ? null : value;
    }
    else {
        return value;
    }
}
/**
 * Returns `null` value for `null` string (case insensitive),
 * or the value otherwise
 * @returns
 */
function ToNull(options) {
    return (0, class_transformer_1.Transform)(({ value }) => toNull(value), options);
}