js exercises: declaration merge

js/tests/arr_test.js

@@ -1,9 +0,0 @@
-export const tests = []
-const t = (f) => tests.push(f)
-
-t(() => Array.isArray(arr)) // arr is declared and is an array
-t(({ eq }) => eq(arr[0], 4)) // arr first element is 4
-t(({ eq }) => eq(arr[1], '2')) // arr second element is "2"
-t(({ eq }) => eq(arr.length, 2)) // arr length is 2
-
-Object.freeze(tests)

js/tests/declarations.js

@@ -0,0 +1,75 @@
+export const tests = []
+const t = (f) => tests.push(f)
+
+// escapeStr
+// is declared and of type string
+t(() => typeof escapeStr === 'string')
+// should include the character '
+t(() => escapeStr.includes("'"))
+// should include the character "
+t(() => escapeStr.includes('"'))
+// should include the character `
+t(() => escapeStr.includes('`'))
+// should include the character /
+t(() => escapeStr.includes('/'))
+// should include the character \
+t(() => escapeStr.includes('\\'))
+
+// arr
+t(() => Array.isArray(arr)) // arr is declared and is an array
+t(({ eq }) => eq(arr[0], 4)) // arr first element is 4
+t(({ eq }) => eq(arr[1], '2')) // arr second element is "2"
+t(({ eq }) => eq(arr.length, 2)) // arr length is 2
+
+// obj
+// obj is declared and of type object
+t(() => obj.constructor === Object)
+// obj is constant and can not be re-assigned
+t(({ fail }) => obj && fail(() => (obj = 10)))
+// obj.str is of type string
+t(() => typeof obj.str === 'string')
+// obj.num is of type number
+t(() => typeof obj.num === 'number')
+// obj.bool is of type boolean
+t(() => typeof obj.bool === 'boolean')
+// obj.undef is of type undefined
+t(() => 'undef' in obj && typeof obj.undef === 'undefined')
+
+// nested
+const cantEdit = (fn) => {
+  try {
+    fn()
+  } catch (err) {
+    return true
+  }
+}
+
+t(() => nested.constructor === Object)
+
+// nested is constant and can not be re-assigned
+t(({ fail }) => nested && fail(() => (nested = 10)))
+
+t(() => nested.obj.constructor === Object)
+t(() => typeof nested.obj.str === 'string')
+t(() => typeof nested.obj.num === 'number')
+t(() => typeof nested.obj.bool === 'boolean')
+
+t(() => Array.isArray(nested.arr))
+t(() => nested.arr[0] === 4)
+t(() => nested.arr[1] === undefined)
+t(() => nested.arr[2] === '2')
+t(() => nested.arr.length === 3)
+
+// nested is frozen and can not be changed
+t(() => cantEdit(() => (nested.obj = 5)))
+t(() => nested.obj !== 5)
+
+// nested.obj is also frozen and can not be changed
+t(() => cantEdit(() => (nested.obj.update = 5)))
+t(() => nested.obj.update === undefined)
+
+// nested.arr is not frozen and can be changed
+t(() => cantEdit(() => nested.arr.push('hot stuff')))
+t(() => nested.arr.length === 3)
+
+Object.freeze(tests)

js/tests/escape-str_test.js

@@ -1,22 +0,0 @@
-export const tests = []
-const t = (f) => tests.push(f)
-
-// escapeStr is declared and of type string
-t(() => typeof escapeStr === 'string')
-
-// escapeStr should include the character '
-t(() => escapeStr.includes("'"))
-
-// escapeStr should include the character "
-t(() => escapeStr.includes('"'))
-
-// escapeStr should include the character `
-t(() => escapeStr.includes('`'))
-
-// escapeStr should include the character /
-t(() => escapeStr.includes('/'))
-
-// escapeStr should include the character \
-t(() => escapeStr.includes('\\'))
-
-Object.freeze(tests)

js/tests/nested_test.js

@@ -1,39 +0,0 @@
-export const tests = []
-const t = (f) => tests.push(f)
-const cantEdit = (fn) => {
-  try {
-    fn()
-  } catch (err) {
-    return true
-  }
-}
-
-t(() => nested.constructor === Object)
-
-// nested is constant and can not be re-assigned
-t(({ fail }) => nested && fail(() => (nested = 10)))
-
-t(() => nested.obj.constructor === Object)
-t(() => typeof nested.obj.str === 'string')
-t(() => typeof nested.obj.num === 'number')
-t(() => typeof nested.obj.bool === 'boolean')
-
-t(() => Array.isArray(nested.arr))
-t(() => nested.arr[0] === 4)
-t(() => nested.arr[1] === undefined)
-t(() => nested.arr[2] === '2')
-t(() => nested.arr.length === 3)
-
-// nested is frozen and can not be changed
-t(() => cantEdit(() => (nested.obj = 5)))
-t(() => nested.obj !== 5)
-
-// nested.obj is also frozen and can not be changed
-t(() => cantEdit(() => (nested.obj.update = 5)))
-t(() => nested.obj.update === undefined)
-
-// nested.arr is not frozen and can be changed
-t(() => cantEdit(() => nested.arr.push('hot stuff')))
-t(() => nested.arr.length === 3)
-
-Object.freeze(tests)

js/tests/obj_test.js

@@ -1,22 +0,0 @@
-export const tests = []
-const t = (f) => tests.push(f)
-
-// obj is declared and of type object
-t(() => obj.constructor === Object)
-
-// obj is constant and can not be re-assigned
-t(({ fail }) => obj && fail(() => (obj = 10)))
-
-// obj.str is of type string
-t(() => typeof obj.str === 'string')
-
-// obj.num is of type number
-t(() => typeof obj.num === 'number')
-
-// obj.bool is of type boolean
-t(() => typeof obj.bool === 'boolean')
-
-// obj.undef is of type undefined
-t(() => 'undef' in obj && typeof obj.undef === 'undefined')
-
-Object.freeze(tests)

subjects/arr.en.md

@@ -1,11 +0,0 @@
-## Arr
-
-### Instructions
-
-Create a constant variable named `arr` that is an array
-containing the values 4 and '2'
-
-
-### Notions
-
- - [nan-academy.github.io/js-training/examples/data-structures.js](https://nan-academy.github.io/js-training/examples/data-structures.js)

subjects/declarations.en.md

@@ -0,0 +1,25 @@
+## Declarations
+
+### Instructions
+
+Create the following variables:
+
+- `escapeStr`, that contains the following specials characters:  \`, `\`, `/`, `"`, `'`
+- `arr` that is an array containing the values 4 and '2'
+- `obj` that is an object containing a property for each primitives:
+  - `str` for `String`
+  - `num` for `Number`
+  - `bool` for `Boolean`
+  - `undef` for `undefined`
+- `nested` that contains
+  - arr: an array of the 3 values: 4, undefined, '2'
+  - obj: an object with 3 property (str, num & bool)
+
+`nested` and `obj` must be frozen to prevent changes from them.
+
+### Notions
+
+- Primitive and Operators
+- Variables
+- [nan-academy.github.io/js-training/examples/data-structures.js](https://nan-academy.github.io/js-training/examples/data-structures.js)
+- [devdocs.io/javascript/global_objects/object/freeze](https://devdocs.io/javascript/global_objects/object/freeze)

subjects/escape-str.en.md

@@ -1,17 +0,0 @@
-## Escape Str
-
-### Instructions
-
-Create a constant variable named `escapeStr` that contains
-the following specials characters:
-  - `
-  - \
-  - /
-  - "
-  - '
-
-
-### Notions
-
-- Primitive and Operators
-- Variables

subjects/nested.en.md

@@ -1,15 +0,0 @@
-## Nested
-
-### Instructions
-
-Create a `nested` constant variable that contains
-- arr: an array of the 3 values: 4, undefined, '2'
-- obj: an object with 3 property (str, num & bool)
-
-`nested` and `obj` must be frozen to prevent changes from them.
-
-
-### Notions
-
-- [nan-academy.github.io/js-training/examples/data-structures.js](https://nan-academy.github.io/js-training/examples/data-structures.js)
-- [devdocs.io/javascript/global_objects/object/freeze](https://devdocs.io/javascript/global_objects/object/freeze)

subjects/obj.en.md

@@ -1,15 +0,0 @@
-## Obj
-
-### Instructions
-
-Create a constant variable named `obj` that is an object
-containing a property for each primitives:
-- `str` for `String`
-- `num` for `Number`
-- `bool` for `Boolean`
-- `undef` for `undefined`
-
-
-### Notions
-
-- [nan-academy.github.io/js-training/examples/data-structures.js](https://nan-academy.github.io/js-training/examples/data-structures.js)