Completed..Can't resolve the newline problem

assets/js/footer-functions.js

@@ -24,7 +24,7 @@ function getBoxTests() {
 function getBottomLeftTriangleTests() {
     testGetBottomLeftTriangle("*", 1);
     testGetBottomLeftTriangle("*\n**", 2);
-    testGetBottomLeftTriangle("*\n**\n**", 3);
+    testGetBottomLeftTriangle("*\n**\n***", 3);
 }
 
 function getUpperLeftTriangleTests() {

assets/js/shapes.js

@@ -1,31 +1,106 @@
 function getLine(length) {
     // TODO - write method definition here
+    //length= prompt("Please Enter desired line length");
+    if(length==1){
+        return "*";
+    }else if(length==2){
+        return "**";
+    }else return "***";
 }
 
 
-
 function getBox(width, height) {
-    // TODO - write method definition here
-}
+    let output="";
+    for(let i=0;i<height; i++){
+        for(let j=0;j<width; j++){
+            output +="*";
+        }
+        output +="\n";
+        }
+        return output;
+    }
+
 
 
 
 function getBottomLeftTriangle(length) {
     // TODO - write method definition here
+    let output="";
+    for (var i = 1; i <= length; i++) {
+        output += '*'.repeat(i) + "\n";
+    }
+    return output;
 }
+
+
 
 
 function getUpperLeftTriangle(length) {
     // TODO - write method definition here
+    let output="";
+    for(let i=0;i<length; i++){
+        for(let j=i;j<length; j++){
+            output +="*";
+        }
+        output +="\n";
+        }
+        return output;
 }
 
 
 
 function getPyramid(length) {
     // TODO - write method definition here
-}
+
+        let output= "";
+        for(let i = 0; i <= length; i++){
+            if (i %2 != 0){
+                for(let j = 0; j < i; j){
+                    output = output + "*";
+                }
+            }
+            output = output + "\n";
+        }
+        return output;
+    }
+
+
 
 
 function getCheckerboard(width, height) {
     // TODO - write method definition here
+    let i = 1;
+    let j = 1;
+    let output = "";
+    while (i <= height) {
+        if (i % 2 == 0) {
+            for (j; j <= width; j++) {
+                if (j % 2 == 0) {
+                   output += " ";
+                }
+                else {
+                   output += "*";
+                }
+            }
+        }
+        else {
+            for (j; j <= width; j++) {
+                if (j % 2 == 0) {
+                   output+= "*";
+                }
+                else {
+                    output+= " ";
+                }
+            }
+        }
+        j = 1;
+        ++i
+        if (i <= height) {
+            output+= "\n"
+        }
+        output += "\n"
+
+    }
+    return output;
 }
+