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<h1>Polyfills</h1>
<p class="desc">Three.js includes polyfills for the following functions and constants.</p>
<h3>[page:Number.EPSILON Number.EPSILON]</h3>
<p>
The difference between one and the smallest value greater than one that can be represented as a Number.
[link:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/EPSILON MDN reference].
</p>
<h3>[page:Math.sign Math.sign]( [page:Number x] )</h3>
<p>
If the argument is a positive number, negative number, positive zero or negative zero,
the function will return 1, -1, 0 or -0 respectively. Otherwise, NaN is returned.
[link:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign MDN reference].
</p>
<h3>[page:Function.prototype.name Function.prototype.name]( [page:Number x] )</h3>
<p>
Returns the name of a function, or (before ES6 implementations) an empty string for anonymous functions.
[link:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name MDN reference].
</p>
<h3>[page:Object.assign Object.assign]( [page:Object target], [page:Object ...sources] )</h3>
<p>
The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object.
It will return the target object.
[link:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign MDN reference].
</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/polyfills.js src/polyfills.js]
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