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35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
/*
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* Copyright (c) 2018-2025, lengleng All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the pig4cloud.com developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: lengleng (wangiegie@gmail.com)
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*/
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/**
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* 判断是否为空
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*/
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module.exports.validatenull = (val) => {
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if (typeof val == 'boolean') {
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return false;
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}
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if (val instanceof Array) {
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if (val.length == 0) return true;
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} else if (val instanceof Object) {
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if (JSON.stringify(val) === '{}') return true;
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} else {
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if (val == 'null' || val == null || val == 'undefined' || val == undefined || val == '') return true;
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return false;
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}
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return false;
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};
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