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Reverse a string #10

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Reverse a string #10

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39 changes: 39 additions & 0 deletions index.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html lang="en">
<head>

</head>
<body>
<script>
function reverseString(str) {
// Step 1. Use the split() method to return a new array
var splitString = str.split(""); // var splitString = "hello".split("");
// ["h", "e", "l", "l", "o"]

// Step 2. Use the reverse() method to reverse the new created array
var reverseArray = splitString.reverse(); // var reverseArray = ["h", "e", "l", "l", "o"].reverse();
// ["o", "l", "l", "e", "h"]

// Step 3. Use the join() method to join all elements of the array into a string
var joinArray = reverseArray.join(""); // var joinArray = ["o", "l", "l", "e", "h"].join("");
// "olleh"

//Step 4. Return the reversed string
return joinArray; // "olleh"
}

reverseString("hello");

console.log(reverseString);

// Simplified version
/*function reverseString(str) {
return str.split("").reverse().join("");
}
reverseString("hello");
*/

</script>

</body>
</html>