closure-02.js - mozsearch

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/* Non-reentrant closure used in an invoke session. */

var last = null;

var a = [1,2,3,4,5,6,7,8];

var b = a.map(function(x) {

    x++;

    var res = last ? last() : 0;

    last = function() { return x; };

    return res;

});

assertEq("" + b, "0,2,3,4,5,6,7,8");