How can I get the index of an element in Arrow Function?

Here is my code:

  this.data.forEach(element => {
    //console.log(index); //I want to get this index
      console.log(element);
  });

Is it possible?

How can I get the index of an element in Arrow Function?

Here is my code:

  this.data.forEach(element => {
    //console.log(index); //I want to get this index
      console.log(element);
  });

Is it possible?

• javascript
• ecmascript-6

• 1 forEach has several parameters, the second is the index. – ASDFGerte Commented Jul 3, 2018 at 21:17
• This is not a question about angular or angularjs. Please stop adding those tags. – mhodges Commented Jul 3, 2018 at 21:22
• "Angularjs is a JavaScript Language"? What are you babbling about? Angularjs is not a language it is a framework and as such this question has nothing to do with it. – gforce301 Commented Jul 3, 2018 at 21:27
• 2 @SurjeetBhadauriya angularjs is not a language - it is a framework. Your question is about how the parameters to .forEach() work, which is specific to JavaScript. It has nothing to do with the angularjs framework. By that logic, you should also tag React, Backbone, Vue, etc. That is not the purpose of tags. – mhodges Commented Jul 3, 2018 at 21:27
• 1 @bambam Haha true! – mhodges Commented Jul 3, 2018 at 21:35

2 Answers 2

you can get index by adding another parameter to array function,

this.data.forEach((element, index) = > {
  console.log(index); //I want to get this index
  console.log(element);
});

You can directly get the index without using forEach if your purpose is just to get index,

console.log(this.data.findIndex(elem => elem === element));

or with .forEach, you can get the index from the second parameter

this.data.forEach((element, index) = > {
  console.log(index); 
});