Question

Write a function that takes a string and removes all characters except alphabets (A-Z, a-z) and digits (0-9)?
function solve( a ){ //write your code here }
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input:"Hello@123!"
output:"Hello123"


input:"Good#Morning_2025"
output:"GoodMorning2025"

input:"Spaces and tabs	mixed"
output:"Spacesandtabmixed"