Typescript - 代码无法从错误TS1128构建：声明或语句预期，但在我提供代码

Question

我正在开发一个Angular2项目，我创建了一个类作为我的主要Component类：

import { Component, OnInit} from '@angular/core';

import { submitService } from './Common-functions/submit.service';

@Component({
selector: 'my-app',
template: `htmlCode`

})
export class AppComponent implements OnInit{ 
  hideTable = true;
  lengthOfRecords = 0;
  lowerLimit = 0;
  upperLimit = 5;
  prevButtonDisabled = true;
  nextButtonDisabled = false;

  //User inputs

constructor(private sService:submitService) { }

ngOnInit() {
    public submitToJSON() {

         //SumbitJSON Object
            var submitJSON = {
                //inputData 
                     };

            this.sService.POST(submitJSON);
     }


   public returnDetails() {

    this.listOfIDs = {//ListData};

            this.hideTable = false;
        var keys = Object.keys(this.listOfIDs);
            var len = keys.length;
            this.lengthOfRecords = len;
        }

    public prev() {
            if(this.lowerLimit <= 0) {
                ;
                }
            else {
                this.lowerLimit = this.lowerLimit - 6;
                this.upperLimit = this.upperLimit - 5;
                this.nextButtonDisabled = false;
                if(this.lowerLimit <= 0) {
                    this.prevButtonDisabled = true;
                    }
                }
            }
   public next() {
            if(this.upperLimit >= this.lengthOfRecords) {
                ;
                }
            else {
                this.lowerLimit = this.lowerLimit + 6;
                this.upperLimit = this.upperLimit + 5;
                this.prevButtonDisabled = false;
                if(this.upperLimit >= this.lengthOfRecords) {
                    this.nextButtonDisabled = true;
                    }
                }
            }

 getEntries(obj, from, to) {
        if(obj!=null) {
            var entries = [];
            for(var key in obj) {
                // extract index after `app`
                var index = key.substring(3);
                if(index >= from && index <= to) {
                    entries.push( obj[key]);
                }
            }
            return entries;
            }

 }

}

当我运行npm start（将运行tsc -p ./）时，我收到以下两个错误：

app.appComponent.ts: error TS1128:Declaration or statement expected
app.appComponent.ts: error TS1128:Declaration or statement expected

在以下代码行

---> public submitToJSON() {

     //SumbitJSON Object
        var submitJSON = {
            //inputData };

        this.sService.POST(submitJSON);
 }

在代码的最后一行。我一整天都在修改代码，只删除OnInit相关的代码修复了它。我究竟做错了什么？我是Angular2的新手，所以任何信息都会有所帮助。我也在运行tsc 3.1版

Answer 1

在我看来，只是需要再次编译项目

Answer 2

只是有同样的错误，在关闭IntelliJ并重新打开后消失了。我一直在修改错误文件。就像它在某种程度上看着旧版本一样。

Answer 3

您已发表评论

//inputData };

我认为大括号应该在下一行......

//inputData
};

修改

您的ngOnInit函数不应包含其他函数：

import { Component, OnInit} from '@angular/core';

import { submitService } from './Common-functions/submit.service';

@Component({
selector: 'my-app',
template: `htmlCode`

})
export class AppComponent implements OnInit{ 
  hideTable = true;
  lengthOfRecords = 0;
  lowerLimit = 0;
  upperLimit = 5;
  prevButtonDisabled = true;
  nextButtonDisabled = false;

  //User inputs

constructor(private sService:submitService) { }

ngOnInit() {
    // Add any initialization code here
}

submitToJSON() {

     //SumbitJSON Object
        var submitJSON = {
            //inputData 
                 };

        this.sService.POST(submitJSON);
 }


returnDetails() {

this.listOfIDs = {//ListData};

        this.hideTable = false;
    var keys = Object.keys(this.listOfIDs);
        var len = keys.length;
        this.lengthOfRecords = len;
    }

prev() {
        if(this.lowerLimit <= 0) {
            ;
            }
        else {
            this.lowerLimit = this.lowerLimit - 6;
            this.upperLimit = this.upperLimit - 5;
            this.nextButtonDisabled = false;
            if(this.lowerLimit <= 0) {
                this.prevButtonDisabled = true;
                }
            }
        }
next() {
        if(this.upperLimit >= this.lengthOfRecords) {
            ;
            }
        else {
            this.lowerLimit = this.lowerLimit + 6;
            this.upperLimit = this.upperLimit + 5;
            this.prevButtonDisabled = false;
            if(this.upperLimit >= this.lengthOfRecords) {
                this.nextButtonDisabled = true;
                }
            }
        }

 getEntries(obj, from, to) {
    if(obj!=null) {
        var entries = [];
        for(var key in obj) {
            // extract index after `app`
            var index = key.substring(3);
            if(index >= from && index <= to) {
                entries.push( obj[key]);
            }
        }
        return entries;
        }



}

Answer 4

在 Visual Studio 代码中，我不得不杀死 npm start 然后再次运行

npm run start