如何访问 angular2 模板中的 javascript 函数？

Question

I have a javascript(.js) file with set of functions in one object.

Now i want to call a function which is (.js) file with (click)event in angular2 template. how to call?? IES.js ..........

var IES = IES|| {};

    IES.execute = function (functionName, args) {
  if(arguments.length>2){
      args = [].slice.call(arguments).splice(1);
  }
  var context = IES;
  var namespaces = functionName.split(".");
  var func = namespaces.pop();
  for(var i = 0; i < namespaces.length; i++) {
    context = context[namespaces[i]];
  }
  return context[func].apply(context, args);
}

  IES.do =  function(){
        console.log('In Do function');
    }
    IES.test = function(){
       console.log('In test function');
    }
    IES.test.hello = function(){
      console.log('In hello function');
    }

Answer 1

Expressions in bindings can only access members of the components class instance. You can assign the function from your JS library to a field in your class and then bind the click event to that field:

<button (click)="f()">click me</button>

export class MyComponent {
  f = fFromJsLib;
}