bob

exo-008/script.js

@@ -0,0 +1,113 @@
+function range(n){
+    let ret = [];
+    for(let i = 0; i < n; i ++){
+        ret.push(i)
+    }
+    return ret;
+}
+range(10)
+
+function printEachElement(lst){
+   for(const elm of lst){
+       console.log(elm);
+   }
+}
+
+function getElementAt(lst, index){
+    return lst[index];
+}
+
+function getFirstElement(lst){
+    return lst[0];
+}
+
+function getSecondElement(lst){
+    return lst[1];
+}
+
+function restList(lst){
+   let ret = []
+   let isFirst = true;
+   for(const elm of lst){
+      if(isFirst){
+         isFirst = false;
+      } else {
+         ret.push(elm);
+      }
+   }
+   return ret;
+}
+
+function butLast(lst){
+    let ret = []
+    let previousElementSet = false;
+    let previousElement ;
+    for(const elm of lst){
+        if(previousElementSet){
+            ret.push(previousElement);
+        }
+        previousElement = elm;
+        previousElementSet = true;
+    }
+    return ret;
+}
+
+function dropN(lst, n){
+    let ret = [];
+    let i = 0;
+    for(const elm of lst){
+       if(i >= n){
+           ret.push(elm)
+       }
+       i ++;
+    }
+    return ret;
+}
+
+function sumListElements(lst){
+    let ret = 0;
+    for(const elm of lst){
+        ret += elm;
+    }
+    return ret;
+}
+
+
+function multiplyListElements(lst){
+    let ret = 1;
+    for(const elm of lst){
+        ret *= elm;
+    }
+    return ret;
+}
+
+
+function copy(lst){
+    let ret = [];
+    for(const elm of lst){
+       ret.push(elm)
+    }
+    return ret;
+}
+
+function isIn(lst, elm){
+    for(const elm_ of lst){
+        if(elm_ === elm){
+            return true;
+        }
+    }
+    return false;
+}
+
+function extractPossitiveNumbers(lst){
+    let ret = [];
+    for(const elm of lst){
+        if(elm >= 0){
+            ret.push(elm);
+        }
+    }
+    return ret;
+}
+
+
+