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title:
  - value: |
      Types or no types
created:
  - value: '2023-09-15T00:00:00+00:00'
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body:
  - value: |
      <p>Here are two versions of some example code I've recently been working on.</p>

      <p>One has types and uses TypeScript, the other is JavaScript and has no types.</p>

      <p>Which do you prefer and why?</p>

      <h2 id="typescript-with-types">TypeScript (with types)</h2>

      <pre><code class="js">add(...numbers: number[]): number {
        return numbers.reduce((a: number, b: number) =&gt; a + b, 0);
      }

      subtract(...numbers: number[]): number {
        let total = numbers[0];

        for (var i = 1, length = numbers.length; i &lt; length; i++) {
          total -= numbers[i];
        }
        return total;
      }
      </code></pre>

      <h2 id="javascript-no-types">JavaScript (no types)</h2>

      <pre><code class="js">add(...numbers){
        return numbers.reduce((a, b) =&gt; a + b, 0);
      }

      subtract(...numbers) {
        let total = numbers[0];

        for (var i = 1, length = numbers.length; i &lt; length; i++) {
          total -= numbers[i];
        }

        return total;
      }
      </code></pre>

              
    format: full_html
    processed: |
      <p>Here are two versions of some example code I've recently been working on.</p>

      <p>One has types and uses TypeScript, the other is JavaScript and has no types.</p>

      <p>Which do you prefer and why?</p>

      <h2 id="typescript-with-types">TypeScript (with types)</h2>

      <pre><code class="js">add(...numbers: number[]): number {
        return numbers.reduce((a: number, b: number) =&gt; a + b, 0);
      }

      subtract(...numbers: number[]): number {
        let total = numbers[0];

        for (var i = 1, length = numbers.length; i &lt; length; i++) {
          total -= numbers[i];
        }
        return total;
      }
      </code></pre>

      <h2 id="javascript-no-types">JavaScript (no types)</h2>

      <pre><code class="js">add(...numbers){
        return numbers.reduce((a, b) =&gt; a + b, 0);
      }

      subtract(...numbers) {
        let total = numbers[0];

        for (var i = 1, length = numbers.length; i &lt; length; i++) {
          total -= numbers[i];
        }

        return total;
      }
      </code></pre>

              
    summary: null
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