VM28 WAService.js:1 thirdScriptError Cannot read property 'length' of undefined;at api request success callback function TypeError: Cannot read property 'length' of undefined at H._orderFail (http://127.0.0.1:48979/appservice/pages/order/order.js:178:30) at http://127.0.0.1:48979/appservice/pages/order/order.js:139:14 at Object.sCallback (http://127.0.0.1:48979/appservice/pages/order/order-model.js:51:23) at success (http://127.0.0.1:48979/appservice/utils/base.js:62:40) at Object.o.<computed> (http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:752129) at Function.<anonymous> (http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:340954) at http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:101868 at O (http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:224829) at Be.<anonymous> (http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:436754) at Be.emit (http://127.0.0.1:48979/appservice/__dev__/WAService.js?t=wechat&s=1684327513715&v=2.6.3:1:333124)(env: Windows,mp,1.06.2209190; lib: 2.6.3)
时间: 2023-06-26 08:04:18 浏览: 64
这是一个JavaScript错误,提示代码中出现了一个无法解析的错误。具体错误信息为“Cannot read property 'length' of undefined”,这意味着代码中尝试访问某个未定义的变量并尝试获取其长度。该错误可能是由于多种因素引起的,例如变量拼写错误、未初始化变量等。你需要检查代码并修复错误。
相关问题
VM93 WAService.js:1 TypeError: Cannot read property '0' of undefined at Object.success (translationpage.js:88) at VM93 WAService.js:1 at Module.Rn (VM93 WAService.js:1) at Object.success (VM93 WAService.js:1) at Function.forEach.m.<computed> (VM93 WAService.js:1) at :49750/appservice/<api request success callback function> at VM93 WAService.js:1 at Jl (VM93 WAService.js:1) at r.<anonymous> (VM93 WAService.js:1) at :49750/appservice/<NetworkRequest9success callback function>
根据错误信息,出现了一个TypeError,提示无法读取undefined的属性'0'。该错误通常发生在JavaScript代码中,尝试访问一个不存在或未定义的对象的属性或方法。
根据错误信息中的代码行号,可以看出该错误发生在translationpage.js文件的第88行。可以尝试检查该行代码,看看是否存在可能导致此错误的问题,例如访问未定义的变量或数组。同时,也可以检查WAService.js文件和其他相关文件,看看是否存在其他错误可能导致此问题。
如果需要更详细的帮助,请提供更多的上下文和代码,以便更好地诊断问题。
Error in callback for watcher "echartData": "TypeError: Cannot read properties of undefined (reading 'length')"
以下是关于"Error in callback for watcher 'echartData': 'TypeError: Cannot read properties of undefined (reading 'length')'"的解释和演示:
1. 对象属性检查
```javascript
var b = {name:1}
console.log(b.hasOwnProperty('name')) // 输出:true
```
2. Promise执行顺序
```javascript
const p1 = new Promise((resolve, reject) => {
setTimeout(() => {
resolve(1)
throw new Error('p1失败信息')
}, 2000)
})
const p2 = p1
.then((val) => {
console.log(val, 'p2成功返回的')
return val + 1
})
.catch((err) => {
console.log(err, 'p2失败返回的')
return err
})
Promise.all([p2, Promise.reject(3)])
.then((val2) => {
console.log(val2, 'all成功返回的')
})
.catch((err2) => {
console.log(err2, 'all失败返回的')
})
```