Concatenate a Javascript function and a string

Question

I am trying to concatenate the result returned by a function to a simple string, both are declared inside the same object. Example:

var hello = {
  how: function(){
    return ' are you';
  },
    ans: 'how',
    answer: 'how' + this.how() 
};

console.log(hello.how()); //works
console.log(hello.ans); //works
console.log(hello.answer); //doesnt work

Here is the Fiddle

Thanks for your help!

See this: https://stackoverflow.com/questions/16600925/how-can-i-add-a-variable-to-console-log — JGallardo, Sep 18 '17 at 19:37
if you want to use `this` like you do, than `hello` has to be an constructor function — Kristianmitk, Sep 18 '17 at 19:37

score 3 · Accepted Answer · answered Sep 18 '17 at 19:33

3

you can use a constructor function to create the object, something like this:

var hello = new function() {
  this.how = function(){
     return ' are you';
  },
  this.ans = 'how',
  this.answer = 'how' + this.how() 
};

console.log(hello.how()); //works
console.log(hello.ans); //works
console.log(hello.answer); //doesnt work

answered Sep 18 '17 at 19:33

Dij

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Thank you, both @Nil and your answer work, now my question is, which one is the best approach? – Crash Override Sep 18 '17 at 20:04

score 0 · Answer 2 · answered Sep 18 '17 at 19:40

This should work:

var hello = {
  how: function(){
    return ' are you';
  },
    ans: 'how',
    answer: function(){
      return 'how' + this.how()
    }
};

console.log(hello.how()); //works
console.log(hello.ans); //works
console.log(hello.answer()); //now works

Concatenate a Javascript function and a string

2 Answers2