some array methods are used in this programs

Author: Kirttinath

check_anagrams.js

@@ -0,0 +1,22 @@
+function areAnagrams(str1, str2) {
+  if (str1.length !== str2.length) {
+    return false;
+  }
+  let count = {};
+
+  for (let i = 0; i < str1.length; i++) {
+    count[str1[i]] = (count[str1[i]] || 0) + 1;
+  }
+
+  for (let i = 0; i < str2.length; i++) {
+    if (!count[str2[i]]) {
+      return false;
+    }
+    count[str2[i]]--;
+  }
+
+  return true;
+}
+
+console.log(areAnagrams("listen", "silent"));
+console.log(areAnagrams("hello", "world"));

factorial.js

@@ -0,0 +1,12 @@
+const number = 5;
+
+const find_factorial = (num) => {
+  let fact = 1;
+  for (let i = num; i >= 1; i--) {
+    fact = fact * i;
+  }
+  return fact;
+};
+
+const res = find_factorial(number);
+console.log(res);

summ_array_elements.js

@@ -0,0 +1,4 @@
+const arr = [8, 9, 5, 6, 4, 6, 2, 3, 7];
+
+const sum = arr.reduce((total, current) => total + current, 0);
+console.log(sum);