current work

2024-09-17 14:41:00 -05:00
commit fa7ac2949b
13 changed files with 183 additions and 0 deletions
--- a/5/function.html
+++ b/5/function.html
@ -0,0 +1,6 @@
+<html><body><script>
+function sayHi() {
+ console.log("Hi!");
+}
+setTimeout(sayHi, 2000);
+</script></body></html>
--- a/5/functioncalledcallback.html
+++ b/5/functioncalledcallback.html
@ -0,0 +1,19 @@
+A function with no parameters that prints how many times it’s
+been called. Hint: define a variable outside of the function to
+keep track of the number of calls, like we did in the “Side
+Effects” section on page 77.
+<html><body><script>
+let a = 0
+let b = 0
+let c = 0
+
+function calledcallback (){a++;console.log(`calledcallback calls: ${a}`)}
+
+callback = function () {b++;console.log(`callback calls: ${b}`)}
+
+cb = () => {c++;console.log(`cb calls: ${c}`)}
+
+calledcallback()
+callback()
+cb()
+</script></body></html>
--- a/5/functiondate.html
+++ b/5/functiondate.html
@ -0,0 +1,11 @@
+A function that prints the current date and time. Hint: you can
+get the current date and time with new Date().
+<html><body><script>
+function datetime (){let t = Date();console.log(t)}
+date = function () {let t = Date();console.log(t)}
+d = () => {let t = Date();console.log(t)}
+
+datetime()
+date()
+d()
+</script></body></html>
--- a/5/functionnumberdic.html
+++ b/5/functionnumberdic.html
@ -0,0 +1,51 @@
+A function that takes a number from 0 to 5 and returns the
+English word for that number. For example, 1 should return "one".
+Hint: use an array to define the mapping from numbers to
+strings.
+<html><body><script>
+function numdict (numb) {
+    dict = {
+        0 : "Zero",
+        1 : "One",
+        2 : "Two",
+        3 : "Three",
+        4 : "Four",
+        5 : "Five"
+    }
+    word = dict[numb]
+    console.log(word)
+    return word
+}
+
+let numberdictionary = function (numb) {
+    dict = {
+        0 : "Zero",
+        1 : "One",
+        2 : "Two",
+        3 : "Three",
+        4 : "Four",
+        5 : "Five"
+    }
+    word = dict[numb]
+    console.log(word)
+    return word
+}
+
+let nd = (numb) => {
+    dict = {
+        0 : "Zero",
+        1 : "One",
+        2 : "Two",
+        3 : "Three",
+        4 : "Four",
+        5 : "Five"
+    }
+    word = dict[numb]
+    console.log(word)
+    return word
+}
+
+numdict(1)
+numberdictionary(2)
+nd(3)
+</script></body></html>