我正在使用 NodeJs 来运行此代码 这是我的自定义模块
call = {};
call.hangup = {
searching: function(number, mysql, validator){
this.number = number;
this.mysql = mysql;
this.validator = validator;
var query = "{sql...}";
try
{
mysql.query(query, function(err, rows, fields) {
if (err) throw err;
if(!validator.isNull(rows))
{
return rows.leadid;
}else {
return false;
}
});
}catch(error)
{
console.log(error);
}
},
test: function(number, mysql, validator){
var self = this;
this.number = number;
this.mysql = mysql;
this.validator = validator;
var result = self.searching(number, mysql, validator);
console.log(result);
}
};
module.exports = call;
然后在我的主文件中调用测试函数
call.hangup.test(number, connection, validator);
但我在控制台中收到此错误代码:
var result = self.searching(leadid, mysql, validator);
^
TypeError: undefined is not a function
我该如何修复它? 为什么会发生这种情况?
最佳答案
您的this
引用(您分配给自变量
)指向测试函数
,并且测试函数没有名为的函数>搜索
。这就是您收到此错误的原因。您应该以这种方式调用 searching
函数 call.hangup.searching
call = {};
call.hangup = {
searching: function(number, mysql, validator){
this.number = number;
this.mysql = mysql;
this.validator = validator;
var query = "{sql...}";
try
{
mysql.query(query, function(err, rows, fields) {
if (err) throw err;
if(!validator.isNull(rows))
{
return rows.leadid;
}else {
return false;
}
});
}catch(error)
{
console.log(error);
}
},
test: function(number, mysql, validator){
this.number = number;
this.mysql = mysql;
this.validator = validator;
var result = call.hangup.searching(number, mysql, validator);
console.log(result);
}
};
module.exports = call;
编辑:
您还可以将 self
变量分配给 call.hangup
test: function(number, mysql, validator){
var self = call.hangup;
this.number = number;
this.mysql = mysql;
this.validator = validator;
var result = self.searching(number, mysql, validator);
console.log(result);
}
关于javascript - NodeJs 未定义不是一个函数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32881177/