Hash from two arrays: Difference between revisions

=={{header|K}}==

The keys in a dictionary must be a symbol.

<lang K> a: `zero `one `two / symbols

b: 0 1 2

d:. a,'b / create the dictionary

.((`zero;0;)

(`one;1;)

(`two;2;))

d[`one]

1</lang>

Here we use integers as keys (which must be converted to symbols) and strings as values (here also converted to symbols).

<lang K> keys: !10 / 0..9

split:{1_'(&x=y)_ x:y,x}

vals:split["zero one two three four five six seven eight nine";" "]

s:{`$$x} / convert to symbol

d:. (s'keys),'s'vals

.((`"0";`zero;)

(`"1";`one;)

(`"2";`two;)

(`"3";`three;)

(`"4";`four;)

(`"5";`five;)

(`"6";`six;)

(`"7";`seven;)

(`"8";`eight;)

(`"9";`nine;))

$d[s 1] / leading "$" converts back to string

"one"</lang>