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43 lines
991 B
43 lines
991 B
/*! (c) Andrea Giammarchi - ISC */
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var self = this || /* istanbul ignore next */ {};
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try { self.Map = Map; }
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catch (Map) {
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self.Map = function Map() {
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var i = 0;
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var k = [];
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var v = [];
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return {
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delete: function (key) {
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var had = contains(key);
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if (had) {
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k.splice(i, 1);
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v.splice(i, 1);
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}
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return had;
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},
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forEach: function forEach(callback, context) {
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k.forEach(
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function (key, i) {
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callback.call(context, v[i], key, this);
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},
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this
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);
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},
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get: function get(key) {
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return contains(key) ? v[i] : void 0;
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},
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has: function has(key) {
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return contains(key);
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},
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set: function set(key, value) {
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v[contains(key) ? i : (k.push(key) - 1)] = value;
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return this;
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}
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};
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function contains(v) {
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i = k.indexOf(v);
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return -1 < i;
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}
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};
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}
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module.exports = self.Map;
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