Solving a Mystery Behavior of parseInt() in JavaScript

Dmitri Pavlutin digs into why parseInt(0.0000005); evaluates to 5: parseInt(0.5); // => 0 parseInt(0.05); // => 0 parseInt(0.005); // => 0 parseInt(0.0005); // => 0 parseInt(0.00005); // => 0 parseInt(0.000005); // => 0 parseInt(0.0000005); // => 5 ? Solving a Mystery Behavior of parseInt() in JavaScript → On a related note, Yannick Clybouw recently hit …

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This content originally appeared on Bram.us and was authored by Bramus!

Dmitri Pavlutin digs into why parseInt(0.0000005); evaluates to 5:

parseInt(0.5);       // => 0
parseInt(0.05);      // => 0
parseInt(0.005);     // => 0
parseInt(0.0005);    // => 0
parseInt(0.00005);   // => 0
parseInt(0.000005);  // => 0
parseInt(0.0000005); // => 5 ?

Solving a Mystery Behavior of parseInt() in JavaScript →

On a related note, Yannick Clybouw recently hit a similar quirk where his deploy onto GAE would fail because of a commit hash that looked a wee bit too much like a number:


This content originally appeared on Bram.us and was authored by Bramus!


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