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  • js 判断空对象

    let hasObj = false;
    for (let i in data.imgPathInfo){
      hasObj = true;
      break;
    }
    if(!hasObj){
      _this.$message.error('图片路径对象为空!');
    }

    获取number类型数字长度:n.toString().length

    jq

    function isEmptyObject(e) {
      var t;
      for (t in e)
        return !1;
      return !0
    }

    console.log($.isEmptyObject({"re": 2})); //false

    console.log(isEmptyObject()); //true
    console.log(isEmptyObject({})); //true
    console.log(isEmptyObject(null)); //true
    console.log(isEmptyObject(23)); //true
    console.log(isEmptyObject({"te": 2})); //false

    相关文章:http://blog.csdn.net/testcs_dn/article/details/40431835

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  • 原文地址:https://www.cnblogs.com/ljbkyBlog/p/7120535.html
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