Here are a few title options that fit the article\'s content and style of a question: **Option 1 (Direct and concise)**: * How to Get a Function\'s Name in JavaScript **Option 2 (Highlighting ES6)**

Accessing Function Name from Within the Function

In JavaScript, accessing a function's name from within that function can be challenging. Traditional methods involve inspecting the prototype or using Function.caller or arguments.callee, but these approaches have drawbacks, such as inconsistency across browsers and potential security issues.

A modern and reliable solution is to utilize the ES6 function.name property. For example:

function myFunction() {
  console.log(myFunction.name); // Outputs "myFunction"
}
myFunction();

In ES5, a more robust approach is to use a utility function to extract the function name from its string representation. Here's a highly optimized version:

function functionName(fun) {
  return /\w+/.exec(fun.toString())[0];
}

For example:

var obj = function() {};
console.log(functionName(obj)); // Outputs "obj"

The above is the detailed content of Here are a few title options that fit the article\'s content and style of a question: **Option 1 (Direct and concise)**: * How to Get a Function\'s Name in JavaScript **Option 2 (Highlighting ES6)**. For more information, please follow other related articles on the PHP Chinese website!