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@xiaozhu119/js-utils-libs

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js常见的函数工具库

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// 手机号中间四位变成* exports.telFormat = (tel) => { tel = String(tel); return tel.substr(0, 3) + "****" + tel.substr(7); }; // 字符串首字母大写 exports.firstLetterUpper = (str) => { return str.charAt(0).toUpperCase() + str.slice(1); }; // 转换字符串,undefined,null等转化为"" exports.praseStrEmpty = (str) =>{ return !str || str === 'undefined' || str === 'null' ? '' : str } /** * 去除参数空数据(用于向后台传递参数的时候) * @param {Object} obj [参数对象] */ exports.filterEmptyData = (obj) => { for (let prop in obj) { obj[prop] === '' ? delete obj[prop] : obj[prop]; } return obj; }