Comparison of programming languages (associative array): Difference between revisions

Revision as of 03:41, 26 November 2012

Revision as of 14:17, 8 December 2012

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You can also check if an element is in the associative array, and delete elements from an associative array.

Multi-dimensional associative arrays can be implementedsimulated in standard Awk using concatenation and e.g. SUBSEP:

<source lang=Text>

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print arr[1], arr[2], multi[x];

}

}

</source>

Thompson AWK [http://www.tasoft.com/tawk.html] provides built-in multi-dimensional associative arrays:

<source lang=Text>

{ # for every input line

multi[$1][$2]++;

}

#

END {

for (x in multi)

for (y in multi[x])

print x, y, multi[x][y];

}

</source>