replace-updates-global-lastIndex.js

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/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

*/

var BUGNUMBER = 501739;

var summary =

  "String.prototype.relace should zero the .lastIndex when called with a " +

  "global RegExp";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

var s = '0x2x4x6x8';

var p1 = /x/g;

p1.lastIndex = 3;

s.replace(p1, '');

assertEq(p1.lastIndex, 0);

var p2 = /x/g;

p2.lastIndex = 3;

var c = 0;

s.replace(p2, function(s) {

    assertEq(p2.lastIndex++, c++);

    return 'y';

});

assertEq(p2.lastIndex, 4);

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");