Question

    {
  "name": "my-app",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^4.4.5",
    "@angular/cdk": "^2.0.0-beta.12",
    "@angular/common": "^4.2.4",
    "@angular/compiler": "^4.2.4",
    "@angular/core": "^4.2.4",
    "@angular/forms": "^4.2.4",
    "@angular/http": "^4.2.4",
    "@angular/material": "^2.0.0-beta.12",
    "@angular/platform-browser": "^4.2.4",
    "@angular/platform-browser-dynamic": "^4.2.4",
    "@angular/router": "^4.2.4",
    "core-js": "^2.4.1",
    "hammerjs": "^2.0.8",
    "rxjs": "^5.4.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.4.4",
    "@angular/compiler-cli": "^4.2.4",
    "@angular/language-service": "^4.2.4",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.2.0",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~2.3.3"
  }
}

web.service.ts文件中的代码是： -

 async getData(daOne){
   try {
  daOne=(daOne) ? '/' + daOne: '';
  var response = await this.http.get(this.HOME_URL+'/MyPage'+daOne).toPromise();
  this.news = response.json();

}

我的组件中的代码： -

  ngOnInit() {
  var data=this.route.snapshot.params.name;
  this.webService.getData(data);
  }

那么这是我的代码，当我试图执行此操作然后它向我显示我在标题中指定的错误...我在谷歌搜索但无法解决此错误...所以请任何人帮助我来解决这个错误...

Answer 1

这实际上是一个问题，模板中的函数调用与它试图在组件的TypeScript中调用的函数的参数列表不匹配。检查模板中的方法调用并验证参数是否正确。

例如：

模板： <button onClick="clickHandler()">Click this!</button>

打字稿：clickHandler(event) { ... }

提供的参数与调用目标的任何签名都不匹配 - Angular

1 个答案: