报错:this.$set is not a function 678 20212223 2728293031 3456 报错如下: 错误代码 //表格序号let nosort =0for(let ninthis.spanArr){if(this.spanArr[n]>0){ nosort+=1this.$set(this.list[n],'nosort',nosort)this.$forceUpdate() } } 解决办法:通过对象打点的方式给对象添加属性。 //表格序...
TypeError: newRawData.forEach is not a function问题解决 TypeError: newRawData.forEach is not a function 是我在使用angular ui grid 时在ui grid.js中报的一个错误 。 其实对于这个问题的分析理解很简单: forEach()是数组特有的一个方法,报forEach is not a function就说明newRawData不是一个数组。
原因: this的指向问题。changeHeader (val) {}这个函数获取的是子组件返回的值,而内部需要修改的是 父组件的 state。 这时this 就指的不是父组件,就会报这个错误。 解决办法: 1. 传入函数时加一个绑定: 2. 把App.js(要被调用的父组件) 改为 箭头函数: 即可! 日常采坑记录,希望对童鞋们有帮助。。。 —...
NotificationsYou must be signed in to change notification settings Fork643 Star3.8k New issue lvhaiboimufeopened this issueDec 23, 2020· 2 comments lvhaiboimufecommentedDec 23, 2020 地图可以正确现实出来,但是控制台会报错 Contributor yiiiiiiqianyaoclosed this ascompletedDec 2, 2021...
为什么在React中调用this.setState会报错提示this.setState is not a function? 在React类组件中如何正确使用this.setState? React中this.setState不是函数的原因有哪些? 当报错这个的时候就要看函数是否在行内绑定this,或者在constructor中绑定this。 我这里犯的错误的是虽然我在constructor中绑定了this,但是语法写的...
// delete true Set(3) {"delete", "clear", "has"} 1. 2. 3. 4. 5. has(value)方法 返回一个布尔值,表示该值是否为Set的成员。 let arr=['add','delete','clear','has']; let list=new Set(arr); console.log('has',list.has('has')); ...
Now, our component has to execute the line of code: this.setState({value:2}); Without having any idea whatthis.setStateis! The <div> that fires the “click” event has no idea where to find the functionthis.setState. Where can we findthis.setStatethen? ThesetStatefunction is native...
开发者工具报错无权限,如图,该怎么解决? set data 函数发生变化了吗? 报错scroll-view 'type' property is not set? TypeError: 'xxxx' is not a function怎么解决? 小程序后台一直报错:Failed set storage group data 相关文档 Order Data: Mini Program/Development/Capabilities/Commercial ...
TypeError: Vue.set is not a function at Errors.set (Errors.js?4eb3:23) at new Errors (Errors.js?4eb3:7) at Model.setData (Model.js?6d83:32) at new Model (Model.js?6d83:12) at VueModel.$model (VueModel.js?f341:38) at apply (lodash.js?3387:496) at wrapper (lodash.js?33...
Then it has about 20 lines of output that starts with "npm ERR! " + filepaths, that I don't think is necessary as the error seems to be in the bin file. The code for this is #!/usr/bin/env node /** * Module dependencies. ...