Landon Taylor

index.js

@@ -1 +1,93 @@
+const readline = require('readline');
+const fs = require('fs')
+const add = require('./modules/add');
+const subtract = require('./modules/subtract');
+const multiply = require('./modules/multiply');
+const divide = require('./modules/divide');
+const lessThan = require('./modules/lessThan');
+const greaterThan = require('./modules/greaterThan');
+const equalTo = require('./modules/equalTo');
+const notEqualTo = require('./modules/NotEqualTo');
 
+const rl = readline.createInterface({
+ input: process.stdin,
+ output: process.stdout
+});
+
+let recallVar = [];
+let recallSometing = [];
+
+function quest() {
+    rl.question('What would you like to know? ', (answer) => {
+        let equation = answer.includes('+')||answer.includes('-')||answer.includes('*')||answer.includes('/')||answer.includes('<')||answer.includes('>')||answer.includes('===')||answer.includes('!=');
+        if (equation) {
+            let leftNum = [];
+            let operator = [];
+            let rightNum = [];
+            for (let i=0; i<answer.length; i++) {
+                let num = Number(answer[i]);
+                if (num === 0 && operator.length != 0) {
+                    rightNum.push(num);
+                } else if (num === 0 && operator.length === 0) {
+                    leftNum.push(num);
+                } else if (!num) {
+                    operator.push(answer[i]);
+                } else if (num && operator.length != 0) {
+                    rightNum.push(num);
+                } else {
+                    leftNum.push(num);
+                }
+            }
+            let lefty = leftNum.join('');
+            let sign = operator.join('');
+            let righty = rightNum.join('');
+            if (sign === '+') {
+                console.log(add(Number(lefty), Number(righty)));
+            } else if (sign === '-') {
+                console.log(subtract(Number(lefty), Number(righty)));
+            } else if (sign === '*') {
+                console.log(multiply(Number(lefty), Number(righty)));
+            } else if (sign === '/') {
+                console.log(divide(Number(lefty), Number(righty)));
+            } else if (sign === '<') {
+                console.log(lessThan(Number(lefty), Number(righty)));
+            } else if (sign === '>') {
+                console.log(greaterThan(Number(lefty), Number(righty)));
+            } else if (sign === '===') {
+                console.log(equalTo(Number(lefty), Number(righty)));
+            } else if (sign === '!=') {
+                console.log(notEqualTo(Number(lefty), Number(righty)));
+            } else console.log('Error: Cannot Compute');
+
+        } else if (answer.includes('let ')) {
+            let vari = answer.replace('let ', '');
+            let varArr = [];
+            let equl = [];
+            let someting = [];
+            for (let i=0; i<vari.length; i++) {
+                let word = vari[i];
+                if (word === '=') {
+                    equl.push(word);
+                } else if (word != '=' && equl.length != 0) {
+                    someting.push(word);
+                } else if (word != '=') {
+                    varArr.push(word);
+                }
+            }
+
+            let newVar = varArr.join('').trim();
+            let newSometing = someting.join('').trim();
+            recallVar.push(newVar);
+            recallSometing.push(newSometing);
+        } else if (recallVar.includes(answer)) {
+            function recall(index) {
+                return index == answer
+            }
+            console.log(recallSometing[recallVar.findIndex(recall)]);
+        } else {
+            console.log('Syntax Error') 
+        }
+        quest(); 
+    });
+}
+quest();

modules/add.js

@@ -0,0 +1,6 @@
+
+function add(num1, num2) {
+    return num1 + num2;
+  }
+  module.exports =  add;
+

modules/divide.js

@@ -0,0 +1,6 @@
+
+function divide(num1, num2) {
+    return num1 / num2;
+  }
+  module.exports =  divide;
+

modules/equalTo.js

@@ -0,0 +1,7 @@
+
+function equalTo(num1, num2) {
+    if (num1 === num2) {
+        return true;
+    } else return false;
+  }
+  module.exports = equalTo;

modules/greaterThan.js

@@ -0,0 +1,8 @@
+
+function greaterThan(num1, num2) {
+    if (num1 > num2) {
+        return true;
+    } else return false;
+  }
+  module.exports = greaterThan;
+

modules/lessThan.js

@@ -0,0 +1,8 @@
+
+function lessThan(num1, num2) {
+    if (num1 < num2) {
+        return true;
+    } else return false;
+  }
+  module.exports = lessThan;
+

modules/multiply.js

@@ -0,0 +1,6 @@
+
+function multiply(num1, num2) {
+    return num1 * num2;
+  }
+  module.exports =  multiply;
+

modules/notEqualTo.js

@@ -0,0 +1,7 @@
+
+function notEqualTo(num1, num2) {
+    if (num1 != num2) {
+        return true;
+    } else return false;
+  }
+  module.exports = notEqualTo;

modules/subtract.js

@@ -0,0 +1,6 @@
+
+function subtract(num1, num2) {
+    return num1 - num2;
+  }
+  module.exports =  subtract;
+