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    <title>DEV Community: yuda pratama</title>
    <description>The latest articles on DEV Community by yuda pratama (@yuda_pratama_fdd92902c316).</description>
    <link>https://dev.to/yuda_pratama_fdd92902c316</link>
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      <title>DEV Community: yuda pratama</title>
      <link>https://dev.to/yuda_pratama_fdd92902c316</link>
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      <title>Kenapa Arrow Function Bisa Bikin Bug Tanpa Disadari?</title>
      <dc:creator>yuda pratama</dc:creator>
      <pubDate>Tue, 26 May 2026 08:17:42 +0000</pubDate>
      <link>https://dev.to/yuda_pratama_fdd92902c316/kenapa-arrow-function-bisa-bikin-bug-tanpa-disadari-81o</link>
      <guid>https://dev.to/yuda_pratama_fdd92902c316/kenapa-arrow-function-bisa-bikin-bug-tanpa-disadari-81o</guid>
      <description>&lt;p&gt;Bandung dulu&lt;br&gt;
Baru Jakarta&lt;br&gt;
Senyum Dulu&lt;br&gt;
Baru Baca&lt;br&gt;
siapa nih yg biasanya maen pantun wkwk&lt;br&gt;
langsung aja dah ke inti materi ya guys,mau tanya nih apakah kalian pernah melihat dua cara bikin function di bawah ini:&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;function add(a, b) {
  return a + b;
}
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;dan yang ini:&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;const add = (a, b) =&amp;gt; a + b;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;sekilas kelihatannya sama ya guys. Bahkan banyak yg berpikir, "Ya udah sih, cuma beda gaya nulis aja"&lt;br&gt;
tapi eitttt  .... sebenarnya &lt;strong&gt;ada perbedaan penting&lt;/strong&gt; yang sering bikin bug tanpa sadar. Diartikel ini, kita akan bahas pelan-pelan biar benar-benar paham.&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Perbedaan Paling Basic (syntax)
Function biasa:
&lt;/li&gt;
&lt;/ol&gt;
&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;function greet(name) {
  return "Hello " + name;
}
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;


&lt;p&gt;Atau versi singkatnya:&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;const greet = (name) =&amp;gt; "Hello " + name;
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;sampai sini masih kelihatan mirip ya? Nah, perbedaan aslinya bukan disini.&lt;/p&gt;

&lt;ol&gt;
&lt;li&gt;Perbedaan Penting: &lt;code&gt;this&lt;/code&gt;
ini yang bikin masalah.
&lt;/li&gt;
&lt;/ol&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;**Function biasa:**
const user = {
  name: "Yuda",
  sayHello: function () {
    console.log("Hello " + this.name);
  },
};

user.sayHello(); // Hello Yuda
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



&lt;p&gt;&lt;strong&gt;Arrow function:&lt;/strong&gt;&lt;br&gt;
&lt;/p&gt;

&lt;div class="highlight js-code-highlight"&gt;
&lt;pre class="highlight plaintext"&gt;&lt;code&gt;const user = {
  name: "Yuda",
  sayHello: () =&amp;gt; {
    console.log("Hello " + this.name);
  },
};

user.sayHello(); // Hello undefined 😱
&lt;/code&gt;&lt;/pre&gt;

&lt;/div&gt;



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      <category>javascript</category>
      <category>beginners</category>
      <category>webdev</category>
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