044;&#x307E;&#x3059;&#x3002; &#x30B3;&#x30F3;&#x30D1;&#x30A4;&#x30E9;&#x306F;&#x3001;&#x5168;&#x3066;&#x306E;&#x95A2;&#x6570;&#x306E;&#x5F15;&#x6570;&#x3068;&#x8FD4;&#x308A;&#x5024;&#x306E;&#x578B;&#x3092;&#x89E3;&#x6790;&#x3057;&#x307E;&#x3059;&#x3002;</p>
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## An Example of Type Inference
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<h2 id="&#x578B;&#x63A8;&#x8AD6;&#x306E;&#x4F8B;">&#x578B;&#x63A8;&#x8AD6;&#x306E;&#x4F8B;</h2>
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The following code defines a `toFullName` function which extracts a person’s full name as a string:
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<p>&#x