feat(solutions): add valid-parentheses/javascript/function

challenges/valid-parentheses/solutions/javascript/function/README.md

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+# valid-parentheses/javascript/function
+
+Created by [@theoludwig](https://github.com/theoludwig) on 18 November 2024.

challenges/valid-parentheses/solutions/javascript/function/package.json

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+{
+  "type": "module"
+}

challenges/valid-parentheses/solutions/javascript/function/solution.js

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+import readline from "node:readline"
+
+const input = []
+const readlineInterface = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+})
+readlineInterface.on("line", (value) => {
+  input.push(value)
+})
+readlineInterface.on("close", solution)
+
+function solution() {
+  console.log(isValidParentheses(input[0]))
+}
+
+const mapCloseOpen = {
+  ")": "(",
+  "]": "[",
+  "}": "{",
+}
+const closeCharacters = Object.keys(mapCloseOpen)
+const openCharacters = Object.values(mapCloseOpen)
+
+/**
+ * @param {string} string
+ * @return {boolean}
+ */
+const isValidParentheses = (string) => {
+  const stack = []
+  for (let index = 0; index < string.length; index++) {
+    if (openCharacters.includes(string[index])) {
+      stack.push(string[index])
+    } else if (closeCharacters.includes(string[index])) {
+      const last = stack.pop()
+      if (last !== mapCloseOpen[string[index]]) {
+        return false
+      }
+    }
+  }
+  return stack.length <= 0
+}