What are some use cases for ES6 functions in JavaScript?
ES6 introduced arrow functions, default parameters, and rest/spread operators. They simplify syntax and enhance readability.
Can you give me an example of an arrow function?
Sure! An arrow function can be written as: const add = (a, b) => a + b;
. It’s concise and doesn't bind its own this
.
What about default parameters?
Default parameters allow you to set default values for function parameters. For example: function multiply(a, b = 1) { return a * b; }
.
How do rest and spread operators work?
The rest operator (...
) collects multiple arguments into an array, while the spread operator spreads elements of an array into individual arguments.
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