finished the first set of exercises

3 years ago · 6839393dd1
parent d0c066fcb9
commit 6839393dd1
2 changed files with 92 additions and 0 deletions
--- a/01_Day_JavaScript_Refresher/exercise_01.js
+++ b/01_Day_JavaScript_Refresher/exercise_01.js
@ -0,0 +1,82 @@
+let arr = Array() //1
+let arr1 = ["oorah", "Help me", "hooray", true, false, 'k', 20] //2
+console.log(arr1.length) //3
+console.log(arr1[0]) //4
+console.log(arr1[Math.floor(arr1.length / 2)]) //4
+console.log(arr1[arr1.length -1]) //4
+let mixedDataTypes = ["yooo", 'p', true, 9, 9.8, null]
+let itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"] //6
+console.log(itCompanies) //7
+console.log(itCompanies.length) //8
+console.log(itCompanies[0]) //9
+console.log(itCompanies[Math.floor(itCompanies.length / 2)]) //9
+console.log(itCompanies[itCompanies.length - 1]) //9
+for(let x in itCompanies)
+{
+    console.log(itCompanies[x]) //10
+}
+for(let x in itCompanies)
+{
+    let new_str = itCompanies[x]
+    new_str = new_str.toUpperCase()
+    itCompanies[x] = new_str
+    console.log(itCompanies[x]) // 11
+    new_str = itCompanies[x]
+    new_str = new_str.toLowerCase()
+    itCompanies[x] = new_str
+}
+console.log(itCompanies[0] + ", " + itCompanies[1] + ", " + itCompanies[2] + ", " + itCompanies[3] + ", " + itCompanies[4] + ", and " + itCompanies[5] + " are big IT companies") //12
+function check_company(company)
+{
+    for(let x in itCompanies)
+    {
+        if(itCompanies[x] == company)
+        {
+            return itCompanies[x]
+        }   
+    }
+    return "company not found"
+}
+let starbucks = check_company("starbucks")
+console.log(starbucks) //13
+let amazon = check_company("amazon")
+console.log(amazon) //13
+function remove_o(arr)
+{
+    for(let x in arr)
+    {  
+        let count = 0
+        let current_string = arr[x]
+        for(let i in current_string)
+        {
+            if(current_string[i] = 'o')
+            {
+                count++
+            }
+            if(count == 2)
+            {
+                arr.splice(i - 1, 1)
+            }
+        }
+    }
+}
+remove_o(itCompanies)
+console.log(itCompanies) //14
+itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"]
+console.log(itCompanies.sort()) //15
+console.log(itCompanies.reverse()) //16
+itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"]
+console.log(itCompanies.splice(3, 3)) //17
+console.log(itCompanies.splice(0, 3)) //18
+itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"]
+console.log("untested")
+itCompanies.splice(2, 2)
+console.log(itCompanies) //19
+itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"]
+itCompanies.shift()
+console.log(itCompanies) //20
+itCompanies = ["facebook", "google", "microsoft", "apple", "ibm oracle", "amazon"]
+itCompanies.pop()
+console.log(itCompanies) //21
+itCompanies.length = 0;
+console.log(itCompanies) //22
--- a/01_Day_JavaScript_Refresher/index.html
+++ b/01_Day_JavaScript_Refresher/index.html
@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>I am new to javascript</title>
+    </head>
+    <body>
+        I am new to javascript. I hope this works
+        <script src ="exercise_01.js"></script>
+    </body>
+</html>