Structures Projects

//i don’t get on my own these 5 exercises which close the JavaScrip Algorithm and Data Structures Projects. Any suggestion by someone who did them?
Thanks a lot.

function palindrome(str) {
return true;


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**Challenge:**  Palindrome Checker

**Link to the challenge:**

Your question is not very clear, so let’s start with the first project, the Palindrome Checker. What exactly do you not understand about this challenge?