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ReverseChar
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| function reverseChar(words){ | |
| // take the last element | |
| let rightIndex = words.length - 1 | |
| // take the first element | |
| let leftIndex = 0; | |
| //iterate and meet in the middle | |
| while(leftIndex < rightIndex){ | |
| //create a temp for the first element | |
| const temp = words[leftIndex]; | |
| //reassign the first el with the last el | |
| words[leftIndex] = words[rightIndex] | |
| //reassign the last el with the first el | |
| words[rightIndex] = temp; | |
| leftIndex++ | |
| //basically meet in the middle | |
| rightIndex-- | |
| } | |
| console.log(words) | |
| } | |
| reverseChar(['m','a','n','u','s','i','a']) | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">function reverseChar(words){ | |
| // take the last element | |
| let rightIndex = words.length - 1 | |
| // take the first element | |
| let leftIndex = 0; | |
| //iterate and meet in the middle | |
| while(leftIndex < rightIndex){ | |
| //create a temp for the first element | |
| const temp = words[leftIndex]; | |
| //reassign the first el with the last el | |
| words[leftIndex] = words[rightIndex] | |
| //reassign the last el with the first el | |
| words[rightIndex] = temp; | |
| leftIndex++ | |
| //basically meet in the middle | |
| rightIndex-- | |
| } | |
| console.log(words) | |
| } | |
| reverseChar(['m','a','n','u','s','i','a'])</script></body> | |
| </html> |
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| function reverseChar(words){ | |
| // take the last element | |
| let rightIndex = words.length - 1 | |
| // take the first element | |
| let leftIndex = 0; | |
| //iterate and meet in the middle | |
| while(leftIndex < rightIndex){ | |
| //create a temp for the first element | |
| const temp = words[leftIndex]; | |
| //reassign the first el with the last el | |
| words[leftIndex] = words[rightIndex] | |
| //reassign the last el with the first el | |
| words[rightIndex] = temp; | |
| leftIndex++ | |
| //basically meet in the middle | |
| rightIndex-- | |
| } | |
| console.log(words) | |
| } | |
| reverseChar(['m','a','n','u','s','i','a']) |
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