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--- layout: api id: catchthrow title: .catchThrow --- [← Back To API Reference](/docs/api-reference.html) <div class="api-code-section"><markdown> ##.catchThrow ```js .catchThrow( [class ErrorClass|function(any error) predicate], any reason ) -> Promise ``` Convenience method for: ```js .catch(function() { throw reason; }); ``` You may optionally prepend one predicate function or ErrorClass to pattern match the error (the generic [.catch](.) methods accepts multiple) Same limitations regarding to the binding time of `reason` to apply as with [`.return`](.). </markdown></div> <div id="disqus_thread"></div> <script type="text/javascript"> var disqus_title = ".catchThrow"; var disqus_shortname = "bluebirdjs"; var disqus_identifier = "disqus-id-catchthrow"; (function() { var dsq = document.createElement("script"); dsq.type = "text/javascript"; dsq.async = true; dsq.src = "//" + disqus_shortname + ".disqus.com/embed.js"; (document.getElementsByTagName("head")[0] || document.getElementsByTagName("body")[0]).appendChild(dsq); })(); </script> <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript" rel="nofollow">comments powered by Disqus.</a></noscript>
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