added more solutions

Author: RioSec

Bash/192-Word_Frequency.sh

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+# Read from the file words.txt and output the word frequency list to stdout.
+cat words.txt | tr -s ' ' '\n' | sort | uniq -c | sort -r | awk '{ print $2, $1 }'

Bash/193-Valid_Phone_Numbers.sh

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+# Read from the file file.txt and output all valid phone numbers to stdout.
+grep -e "^[0-9]\{3\}\-[0-9]\{3\}\-[0-9]\{4\}$" -e "^([0-9]\{3\}) [0-9]\{3\}\-[0-9]\{4\}$" file.txt

Bash/194-Transpose_Files.sh

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+# Read from the file file.txt and print its transposed content to stdout.
+awk '{for (i=1; i<=NF; i++) {if (NR==1) {arr[i]=$i} else {arr[i]=arr[i] " " $i}}} END {for (i=1; i<=NF; i++) {print arr[i]}}' file.txt

JS/2690-Infinite_Method_Object.js

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+/**
+ * @return {Object}
+ */
+var createInfiniteObject = function() {
+    return new Proxy({}, {
+        get: function(target, propKey) {
+            return function() {
+                return String(propKey);
+      };
+    }
+  });
+};
+
+/**
+ * const obj = createInfiniteObject();
+ * obj['abc123'](); // "abc123"
+ */

JS/2703-Return_Length_Of_Arguments_Passed.js

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+/**
+ * @param {...(null|boolean|number|string|Array|Object)} args
+ * @return {number}
+ */
+var argumentsLength = function(...args) {
+return args.length
+};
+
+
+/**
+ * argumentsLength(1, 2, 3); // 3
+ */

JS/2796-Repeat_String.js

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+/**
+ * @param {number} times
+ * @return {string}
+ */
+String.prototype.replicate = function(times) {
+    let repl = '';
+    for (let i = 0; i < times; i++) repl += this;
+    return repl;
+}

Python3/1119-Remove_Vowels_From_A_String.py

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+class Solution:
+    def removeVowels(self, S):
+        return "".join(c for c in S if c not in "aeiou")
+
+        

Python3/2879-Display_The_First_Three_Rows.py

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+import pandas as pd
+
+def selectFirstRows(employees: pd.DataFrame) -> pd.DataFrame:
+    return employees.iloc[0:3]

Python3/2884-Modify_Columns.py

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+import pandas as pd
+
+def modifySalaryColumn(employees: pd.DataFrame) -> pd.DataFrame:
+    employees['salary'] = employees['salary'].multiply(2)
+    return employees
+   

Python3/3110-Score_Of_A_String.py

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+class Solution:
+    def scoreOfString(self, s: str) -> int:
+        score = 0
+        for i in range(len(s) - 1):
+            score += abs(ord(s[i]) - ord(s[i + 1]))
+        return score

Python3/367-Valid_Perfect_Square.py

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+import math
+class Solution:
+    def isPerfectSquare(self, num: int) -> bool:
+        return sqrt(num) == floor(sqrt(num))