rms

championswimmer · championswimmer · commit c3c3848215ee · 2019-09-21T17:14:06.000+05:30
Signed-off-by: Arnav Gupta &lt;arnav@codingblocks.com&gt;
diff --git a/Lecture07/Lecture08/array-ops/array-ops.js b/Lecture07/Lecture08/array-ops/array-ops.js
@@ -0,0 +1,32 @@
+let arr = [45, 312, 524, 7648, 324, 523, 535, 76, 45, 3, 2356]
+let arr0 = [45, -312, 524, 7648, -324, 523, 535, -76, 45, 3, -2356]
+
+let x = function(v, i, a) {
+  return v / i
+}
+
+let arr2 = arr.map(x)
+
+let y = function(v, i, a) {
+  return v % 2 == 0
+}
+
+let arr3 = arr.filter(y)
+
+let sum = arr.reduce(function(accum, value, index, array) {
+  console.log(accum, value, index)
+  return accum + value
+})
+
+let negSum = arr0.reduce(
+  function(ac, val, i, a) {
+    console.log(ac, val, i)
+    if (val < 0) {
+      ac += val
+    }
+
+    return ac
+
+  },
+  0,
+)
diff --git a/Lecture07/Lecture08/array-ops/index.html b/Lecture07/Lecture08/array-ops/index.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+  <script src="array-ops.js"></script>
+</head>
+<body>
+
+  <input style="width: 400px"  id="vals">
+  <button id="calc">Calculate</button>
+  <table border="1" cellpadding="10">
+    <tr>
+      <td><sub>N</sub>rms</td>
+      <td id="nRMS"></td>
+    </tr>
+    <tr>
+      <td><sub>P</sub>rms</td>
+      <td id="pRMS"></td>
+    </tr>
+    <tr>
+      <td>rms</td>
+      <td id="RMS"></td>
+    </tr>
+  </table>
+</body>
+</html>
