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30 lines
616 B
30 lines
616 B
10 years ago
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"use strict";
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var invariant = require("react/lib/invariant");
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var canUseDOM = require("react/lib/ExecutionEnvironment").canUseDOM;
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var History = {
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/**
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* The current number of entries in the history.
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*
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* Note: This property is read-only.
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*/
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length: 1,
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/**
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* Sends the browser back one entry in the history.
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*/
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back: function back() {
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invariant(canUseDOM, "Cannot use History.back without a DOM");
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// Do this first so that History.length will
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// be accurate in location change listeners.
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History.length -= 1;
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window.history.back();
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}
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};
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module.exports = History;
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