1259

javascript/source/1259/printer.js

@@ -0,0 +1,15 @@
+let path = require("path");
+let inputPath = path.join(__dirname, "/dev/stdin"); // __dirname은 현재 스크립트의 디렉토리 절대경로
+let input = require("fs")
+  .readFileSync(inputPath)
+  .toString()
+  .trim()
+  .split("\r\n");
+//let input = require('fs').readFileSync('/dev/stdin').toString().trim().split('');  //백준 제출
+
+input.filter((el) => {
+  if (el === "0") return false; // 0인 경우 제거
+  let newEl = el.split("").reverse().join("");
+  console.log(el === newEl ? "yes" : "no");
+  return true;
+});

javascript/source/test/filter.Multi-DimensionalArray.js

@@ -0,0 +1,14 @@
+const nested = [
+  [1, 2, 3],
+  [4, 5, 6],
+  [7, 8, 9],
+];
+
+const filteredNested = nested.map((arr) => arr.filter((num) => num % 2 === 0));
+
+console.log(filteredNested);
+// [
+//   [2],
+//   [4, 6],
+//   [8]
+// ]

javascript/source/test/filter.include.js

@@ -0,0 +1,5 @@
+const words = ["apple", "banana", "cherry", "date"];
+
+const wordsWithA = words.filter((word) => word.includes("a"));
+
+console.log(wordsWithA); // ['apple', 'banana', 'date']

javascript/source/test/filter.indexOf.js

@@ -0,0 +1,7 @@
+const numbers = [1, 2, 2, 3, 4, 4, 5];
+
+const uniqueNumbers = numbers.filter(
+  (num, index, array) => array.indexOf(num) === index
+);
+
+console.log(uniqueNumbers); // [1, 2, 3, 4, 5]

javascript/source/test/filter.js

@@ -0,0 +1,5 @@
+const numbers = [1, 2, 3, 4, 5, 6];
+
+const evenNumbers = numbers.filter((num) => num % 2 === 0);
+
+console.log(evenNumbers); // [2, 4, 6]

javascript/source/test/filter.object.js

@@ -0,0 +1,13 @@
+const people = [
+  { name: "Alice", age: 17 },
+  { name: "Bob", age: 20 },
+  { name: "Charlie", age: 18 },
+];
+
+const adults = people.filter((person) => person.age >= 18);
+
+console.log(adults);
+// [
+//   { name: 'Bob', age: 20 },
+//   { name: 'Charlie', age: 18 }
+// ]