diff --git a/problems/accessing-array-values/accessing-array-values.js b/problems/accessing-array-values/accessing-array-values.js
new file mode 100644
index 00000000..4364704a
--- /dev/null
+++ b/problems/accessing-array-values/accessing-array-values.js
@@ -0,0 +1,3 @@
+const food = ['apple', 'pizza', 'pear']
+
+console.log(food[2]);
\ No newline at end of file
diff --git a/problems/array-filtering/array-filtering.js b/problems/array-filtering/array-filtering.js
new file mode 100644
index 00000000..b1acddbf
--- /dev/null
+++ b/problems/array-filtering/array-filtering.js
@@ -0,0 +1,7 @@
+const numbers =[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+const filtered = numbers.filter(function evenNumbers (number) {
+    return number % 2 === 0
+});
+
+console.log(filtered);
\ No newline at end of file
diff --git a/problems/arrays/arrays.js b/problems/arrays/arrays.js
new file mode 100644
index 00000000..28b5cc20
--- /dev/null
+++ b/problems/arrays/arrays.js
@@ -0,0 +1,3 @@
+const pizzaToppings =["tomato sauce", "cheese", "pepperoni"]
+
+console.log(pizzaToppings);
\ No newline at end of file
diff --git a/problems/for-loop/for-loop.js b/problems/for-loop/for-loop.js
new file mode 100644
index 00000000..334bbf5c
--- /dev/null
+++ b/problems/for-loop/for-loop.js
@@ -0,0 +1,11 @@
+ var total = 0;
+ var limit = 10;
+
+for (let i = 0;i < 10; i++ ) {
+    console.log(total);
+
+};
+
+
+
+
diff --git a/problems/function-arguments/function-arguments.js b/problems/function-arguments/function-arguments.js
new file mode 100644
index 00000000..16e9e075
--- /dev/null
+++ b/problems/function-arguments/function-arguments.js
@@ -0,0 +1,7 @@
+function math (a,b,c) {
+
+    return (b*c+a)
+
+};
+
+console.log(math(53,61,67));
\ No newline at end of file
diff --git a/problems/functions/functions.js b/problems/functions/functions.js
new file mode 100644
index 00000000..4730f150
--- /dev/null
+++ b/problems/functions/functions.js
@@ -0,0 +1,14 @@
+function eat (food) {
+    
+    return (
+        food + ` tasted really good `
+    )
+  
+    
+};   
+    console.log(eat ("banana"));
+
+    // question "food"//
+        
+    
+
diff --git a/problems/if-statement/if-statement.js b/problems/if-statement/if-statement.js
new file mode 100644
index 00000000..4fe0e7e0
--- /dev/null
+++ b/problems/if-statement/if-statement.js
@@ -0,0 +1,17 @@
+let fruit = "orange"
+
+if ("orange" > 5) {
+    console.log('The fruit name has more than five characters.')
+}
+else 
+ {
+    console.log('The fruit name has five characters or less.')
+}
+
+
+/*if ("orange" > 5) {
+    console.log('The fruit name has more than five characters.')
+}
+else ("orange" <= 5) {
+    console.log('The fruit name has five characters or less.')
+}   can't it be written like this?*/
\ No newline at end of file
diff --git a/problems/if-statement/introduction.js b/problems/if-statement/introduction.js
new file mode 100644
index 00000000..e69de29b
diff --git a/problems/introduction/introduction .js b/problems/introduction/introduction .js
new file mode 100644
index 00000000..00b09eaf
--- /dev/null
+++ b/problems/introduction/introduction .js	
@@ -0,0 +1 @@
+//I don't understand.
\ No newline at end of file
diff --git a/problems/looping-through-arrays/looping-through-arrays.js b/problems/looping-through-arrays/looping-through-arrays.js
new file mode 100644
index 00000000..59924a2a
--- /dev/null
+++ b/problems/looping-through-arrays/looping-through-arrays.js
@@ -0,0 +1,6 @@
+let pets = ['cat', 'dog', 'rat']
+pets[i] = pets[i] + 's'
+
+console.log(pets);
+
+// not working!
\ No newline at end of file
diff --git a/problems/number-to-string/number-to-string.js b/problems/number-to-string/number-to-string.js
new file mode 100644
index 00000000..9688ebed
--- /dev/null
+++ b/problems/number-to-string/number-to-string.js
@@ -0,0 +1,4 @@
+let n = 128
+n = n.toString()
+
+console.log(n);
\ No newline at end of file
diff --git a/problems/objects/objects.js b/problems/objects/objects.js
new file mode 100644
index 00000000..d27832f9
--- /dev/null
+++ b/problems/objects/objects.js
@@ -0,0 +1,7 @@
+const pizza = {
+    toppings : ['cheese', 'sauce', 'pepperoni'],
+    crust : 'deep dish',
+    serves: 2
+
+  };
+   console.log(pizza);
\ No newline at end of file
diff --git a/problems/revising-strings/revising-strings.js b/problems/revising-strings/revising-strings.js
new file mode 100644
index 00000000..9926e1cc
--- /dev/null
+++ b/problems/revising-strings/revising-strings.js
@@ -0,0 +1,4 @@
+let pizza = 'pizza is alright'
+pizza = pizza.replace("alright","wonderful")
+
+console.log(pizza);
\ No newline at end of file
diff --git a/problems/rounding-numbers/rounding-numbers.js b/problems/rounding-numbers/rounding-numbers.js
new file mode 100644
index 00000000..21a672ad
--- /dev/null
+++ b/problems/rounding-numbers/rounding-numbers.js
@@ -0,0 +1,6 @@
+let roundUp = 1.5
+ roundUp = Math.round(1.5)
+
+let rounded = Math.round(1.5)
+
+console.log(rounded);
\ No newline at end of file
diff --git a/problems/scope/scope.js b/problems/scope/scope.js
new file mode 100644
index 00000000..b6e9dce4
--- /dev/null
+++ b/problems/scope/scope.js
@@ -0,0 +1,18 @@
+const a = 1; const b = 2; const c = 3;
+
+(function firstFunction () {
+  const b = 5; const c = 6;
+
+  (function secondFunction () {
+    const b = 8;
+
+    (function thirdFunction () {
+      const a = 7; const c = 9;
+
+      (function fourthFunction () {
+        const a = 1; const c = 8;
+      })()
+    })() // no entiendo//
+  })()
+})()
+
diff --git a/problems/string-length/string-length.js b/problems/string-length/string-length.js
new file mode 100644
index 00000000..96375396
--- /dev/null
+++ b/problems/string-length/string-length.js
@@ -0,0 +1,3 @@
+const example = 'example string';
+
+console.log(example.length);
\ No newline at end of file
diff --git a/problems/strings/strings.js b/problems/strings/strings.js
new file mode 100644
index 00000000..1b8827c1
--- /dev/null
+++ b/problems/strings/strings.js
@@ -0,0 +1,3 @@
+const someString = 'this is a string';
+
+console.log(someString);
\ No newline at end of file
diff --git a/problems/variables/variables.js b/problems/variables/variables.js
new file mode 100644
index 00000000..0d87ec7b
--- /dev/null
+++ b/problems/variables/variables.js
@@ -0,0 +1,3 @@
+let example = 'some string';
+
+console.log(example);
\ No newline at end of file