Convert Decimal
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Write a JavaScript function to convert a decimal number to binary, hexadecimal or octal number.
Example outputs:
console.log(dec_to_bho(654321,'B'));
"10011111101111110001"
console.log(dec_to_bho(654321,'H'));
"9fbf1"
console.log(dec_to_bho(654321,'O'));
"2375761"