making changes

assets/js/shapes.js

@@ -1,31 +1,83 @@
 function getLine(length) {
     // TODO - write method definition here
+    let response = "";
+    for(let i = 0 ; i < length ; i++) {
+        response += "*";
+    }
+    return response;
 }
 
 
 
 function getBox(width, height) {
     // TODO - write method definition here
+    let response = "";
+    for(let i = 0 ; i < height ; i++) {
+        for(let j =0; j < width ; j++) {
+            response += "*";
+        }
+        response += "\n";
+    }
+    return response;
 }
 
 
 
 function getBottomLeftTriangle(length) {
     // TODO - write method definition here
+    let response = "";
+    for(let i = 1 ; i <= length; i++) {
+        for(let j = 0 ; j < i; j++) {
+            response += "*";
+        }
+        response += "\n";
+    }
+    return response;
 }
 
 
 function getUpperLeftTriangle(length) {
     // TODO - write method definition here
+    let response="";
+    for (let i = 0 ; i < length ; i++) {
+        for (let j = i ; j < length ;j++) {
+            response += "*";
+        }
+        response += "\n";
+    }
+    return response;
 }
 
 
 
 function getPyramid(length) {
     // TODO - write method definition here
+    let response="";
+    for (let i = 1 ; i <= length ; i++) {
+        for (let j = i ; j < length ; j++) {
+            response += " ";
+        }
+        for( let k = 1; k < (i*2) ; k++) {
+            response += "*";
+        }
+        response += "\n";
+    }
+    return response;
 }
 
 
 function getCheckerboard(width, height) {
+    let response = "";
+    for (let i = 0; i <height; i++) {
+        for (let j = 0 ; j < width ; j++) {
+            if (((i+j)%2) == 0) {
+                response += " ";
+            } else {
+                response += "*";
+            }
+        }
+        response += "\n";
+    }
+    return response;
     // TODO - write method definition here
 }