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JavaScript Coding Questions

As a Front-End developer, JavaScript is the core skill of everything

173. uncompress string JavaScript string algorithm medium
166. validate number string JavaScript Algorithm string medium
112. remove duplicate characters in a string JavaScript Algorithm string medium
111. Count palindromic substrings JavaScript Algorithm string easy
105. find the first duplicate character in a string JavaScript string easy
102. validate string of parentheses JavaScript Algorithm string easy
97. compress a string JavaScript string easy