Map-iterator-remove-5.js

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// Removing a Map entry already visited by an iterator does not cause any

// entries to be skipped.

var map = new Map();

for (var i = 0; i < 20; i++)

    map.set(String.fromCharCode('A'.charCodeAt(0) + i), i);

var log = '';

for (var [k, v] of map) {

    log += k;

    if (v % 5 === 4) {

        // Delete all entries preceding this one.

        for (let [k1, v1] of map) {

            if (k1 === k)

                break;

            map.delete(k1);

assertEq(log, 'ABCDEFGHIJKLMNOPQRST');

assertEq(map.size, 1);  // Only the last entry remains.

assertEq(map.get('T'), 19);