wiki:javascript:javascript_note:화살표함수_정리

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--- wiki:javascript:javascript_note:화살표함수_정리 [2022/12/22 19:12]
emblim98
+++ wiki:javascript:javascript_note:화살표함수_정리 [2023/01/13 18:44] (현재)
@@ 줄 35: / 줄 35: @@
 ({a, b} = { a: 10, b: 20 }) => expression
 </code>
+\\
+화살표 함수 변환 과정\\
+<code javascript>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>The filter() Method</title>
+</head>
+<body>
+    <h1>JavaScript Arrays</h1>
+    <h2>The filter() Method</h2>
+    <p>Get every element in the array that has a value of 18 or more:</p>
+    <p id="demo"></p>
+    <script>
+        const ages = [32, 33, 16, 40];
+        const filtered = ages.filter(function(age){return age >= 18;});
+        console.log(filtered);
+        const filtered2 = ages.filter((age) => {return age >=18;});
+        console.log(filtered2);
+        const filtered3 = ages.filter((age) => age >= 18);
+        console.log(filtered3);
+        const filtered4 = ages.filter(age => age >= 18);
+        console.log(filtered4);
+        // 출력 결과 모두 동일
+        // (3) [32, 33, 40]
+        //  0: 32
+        //  1: 33
+        //  2: 40
+        // length: 3
+        // [[Prototype]]: Array(0)
+    </script>
+</body>
+</html>
+</code>
@@ 줄 50: / 줄 96: @@
 ===== Ref Link ====
 [[https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions|Arrow function expressions]]\\
+[[https://www.w3schools.com/jsref/jsref_filter.asp|JavaScript Array filter()]]\\
+[[https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Array/filter|Array.prototype.filter()]]\\
+[[https://frhyme.github.io/jquery/jQuery11_Traversal_Filter/|jQuery - Traversal - Filter]]\\
+[[https://developer-talk.tistory.com/114|[JavaScript]배열에서 특정 값의 개수]]\\
 {{tag>오션 Javascript 화살표_함수_정리}}

/volume1/web/dokuwiki/data/attic/wiki/javascript/javascript_note/화살표함수_정리.1671703942.txt.gz · 마지막으로 수정됨: 2022/12/22 19:12 저자 emblim98