on part 3 of hw3

hw3/script.js

@@ -5,6 +5,11 @@
  */
 function staircase() {
   // ****** TODO: PART II ******
+    let bar = document.getElementById("chart1").children[0].children;
+    for(let i = 0; i < bar.length; i++){
+        bar[i].style.height = (i+1) * 10;
+    }
+
 }
 
 /**
@@ -28,9 +33,18 @@ function update(data) {
   // ****** TODO: PART III (you will also edit in PART V) ******
 
   // TODO: Select and update the 'a' bar chart bars
+    let aBars = document.getElementById("chart1").children[0].children;
+    for(let i = 0; i < aBars.length; i++){
+        console.log(aScale(data[i].a));
+        d3.select("chart1").select("barChart").selectAll('rect').attr('height', aScale(data[i].a));
+        aBars[i].height = aScale(data[i].a);
+    }
 
   // TODO: Select and update the 'b' bar chart bars
-
+    let bBars = document.getElementById("chart2").children[0].children;
+    for(let i = 0; i < bBars.length; i++){
+        bBars[i].height = bScale(data[i].b);
+    }
   // TODO: Select and update the 'a' line chart path using this line generator
 
   let aLineGenerator = d3.line()