Day 1 Node/NPM

src/dates/index.js

@@ -1,20 +1,50 @@
 // import moment here; use this package in each function
+var moment = require('moment');
+
 
 const today = () => {
   // write code for dates.today
-
+ const d = new Date().getDay()
+  if (d == 0) {
+    return 'Sunday'
+  }
+  else if (d == 1) {
+    return 'Monday'
+  }
+  else if (d == 2) {
+    return 'Tuesday'
+  }
+  else if (d == 3) {
+    return 'Wednesday'
+  }
+  else if (d == 4) {
+    return 'Thursday'
+  }
+  else if (d == 5) {
+    return 'Friday'
+  }
+  else {
+    return 'Saturday'
+  }
 }
 
+//today()
+
 const calendar = () => {
   // write code for dates.calendar
-
+  return moment().format('MMM DD, YYYY');
+
 }
+//calendar()
 
 const currentTime = () => {
   // write code for dates.currentTime
-
+  return moment().format('hh:mm:ss A');
+
 }
 
+//currentTime()
+
 module.exports = {
   today,
   calendar,

src/numbers/index.js

@@ -1,16 +1,28 @@
 const isEven = (num) => {
   // write code for numbers.isEven
-
+  if (num % 2 === 0) {
+		return true;
+	}
 }
 
 const sum = (arr) => {
   // write code for numbers.sum
-
+  let s = 0;
+  for (let i = 0; i < arr.length; i++) {
+		s += arr[i];
+	}
+	return s;
 }
 
 const comboSum = (arr, sum) => {
   // write code for numbers.comboSum
-
+  let reducer = (accumulator, currentValue) => accumulator + currentValue;
+  let t = arr.reduce(reducer);
+  if(t == sum){
+    return true;
+  } else {
+    return false;
+  }
 }
 
 module.exports = {

src/strings/index.js

@@ -1,16 +1,23 @@
 const split = (str, delim) => {
   // write code for strings.split
-
+  return str.split(delim)
 }
 
 const pairs = (str) => {
   // write code for strings.pairs
-
+  let x = []
+  for(let i= 0; i < str.length-1; i++) {
+    if(i%2 ===0) {
+    x.push(`${str[i]}${str[i+1]}`)
+  }
+  }
+  return x
 }
 
 const reverse = (str) => {
   // write code for strings.reverse
-
+  let y = str.split('').reverse().join('')
+  return y;
 }
 
 module.exports = {