[javascript] Call a function on click event in Angular 2

How to declare a function inside a component (typescript) and call it on a click event in Angular 2? Following is the code for the same functionality in Angular 1 for which I require Angular 2 code:

<button ng-click="myFunc()"></button>

//controller

app.controller('myCtrl', ['$scope', function($cope) {
    $scope.myFunc= {
        console.log("function called");
    };
}]);

This question is related to javascript angular typescript

The answer is


The line in your controller code, which reads $scope.myFunc={ should be $scope.myFunc = function() { the function() part is important to indicate, it is a function!

The updated controller code would be

app.controller('myCtrl',['$scope',function($cope){
    $scope.myFunc = function() {
    console.log("function called");
  };
}]);

https://angular.io/guide/user-input - there's a simple example .


This worked for me: :)

<button (click)="updatePendingApprovals(''+pendingApproval.personId, ''+pendingApproval.personId)">Approve</button>
updatePendingApprovals(planId: string, participantId: string) : void {
  alert('PlanId:' + planId + '    ParticipantId:' + participantId);
}

Exact transfer to Angular2+ is as below:

<button (click)="myFunc()"></button>

also in your component file:

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

@Component({
  templateUrl:"button.html" //this is the component which has the above button html
})

export class App implements OnInit{
  constructor(){}

  ngOnInit(){

  }

  myFunc(){
    console.log("function called");
  }
}

Examples related to javascript

need to add a class to an element How to make a variable accessible outside a function? Hide Signs that Meteor.js was Used How to create a showdown.js markdown extension Please help me convert this script to a simple image slider Highlight Anchor Links when user manually scrolls? Summing radio input values How to execute an action before close metro app WinJS javascript, for loop defines a dynamic variable name Getting all files in directory with ajax

Examples related to angular

error NG6002: Appears in the NgModule.imports of AppModule, but could not be resolved to an NgModule class error TS1086: An accessor cannot be declared in an ambient context in Angular 9 TS1086: An accessor cannot be declared in ambient context @angular/material/index.d.ts' is not a module Why powershell does not run Angular commands? error: This is probably not a problem with npm. There is likely additional logging output above Angular @ViewChild() error: Expected 2 arguments, but got 1 Schema validation failed with the following errors: Data path ".builders['app-shell']" should have required property 'class' Access blocked by CORS policy: Response to preflight request doesn't pass access control check origin 'http://localhost:4200' has been blocked by CORS policy in Angular7

Examples related to typescript

TS1086: An accessor cannot be declared in ambient context Element implicitly has an 'any' type because expression of type 'string' can't be used to index Angular @ViewChild() error: Expected 2 arguments, but got 1 Typescript: No index signature with a parameter of type 'string' was found on type '{ "A": string; } Understanding esModuleInterop in tsconfig file How can I solve the error 'TS2532: Object is possibly 'undefined'? Typescript: Type 'string | undefined' is not assignable to type 'string' Typescript: Type X is missing the following properties from type Y length, pop, push, concat, and 26 more. [2740] Can't perform a React state update on an unmounted component TypeScript and React - children type?