12 lines
656 B
Text
12 lines
656 B
Text
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<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Car</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">Vehicle</span> </span>{
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<span class="hljs-keyword">constructor</span>(speed, cost) {
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<span class="hljs-keyword">super</span>(speed);
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<span class="hljs-keyword">var</span> c = <span class="hljs-built_in">Symbol</span>(<span class="hljs-string">'cost'</span>);
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<span class="hljs-keyword">this</span>[c] = cost;
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<span class="hljs-keyword">this</span>.intro = <span class="hljs-string">`This is a car runs at
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<span class="hljs-subst">${speed}</span>.`</span>;
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}
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}
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