Concate strings Using join with an Array

Here's what happens:
1. ["Hello", "World"]: This is an array that contains two strings, "Hello" and "World". An array in JavaScript is a list-like structure that holds multiple items.
2. .join(" "): The .join() method is an array method used to combine all the elements of the array into a single string. The value passed to .join() (in this case, a space " ") specifies what will separate the array elements when they are joined.
o Here, the space " " is passed as an argument to .join(), so the array elements will be combined with a space between them.
3. Result: The join() method combines the two array elements into the string "Hello World", with a space separating them.
Summary:
• join(" ") takes the elements of the array and joins them together, using the string passed as an argument (a space, in this case) as the separator between them.
• In this case, it turns the array ["Hello", "World"] into the string "Hello World".

🔹 Best Practice:
• Use + for simple cases.
• Use template literals (${}) for readability and when variables are involved.
• Use join() when dealing with arrays of strings