dejatrudeaux/funthingsforfunreasons

Precourse Exit Practice

Requirements Pseudocode everything! Define your "IOCE" Do not alter any provided function definitions Make sure to understand your constraints. A correct answer not following the constraints is wrong. It is better to have attempted the correct problem. Feel free to use the console

Manipulating Collections

• Make 2 functions that randomize the order of an Array's contents. Implement one function that is pure, and one that modifies the original array.

• Make a function that accepts an unspecified number of objects and updates the first object with the contents of all subsequent objects.

• Make a function that performs the same operation as the previous function, but does not replace values at keys that are already present.

Recursion

Find all values of a provided name in an Object (and nested Objects) and rename them to a provided new name.

Example:

const obj = {
    golf: {
	    zebra: 'charlie'
	},
};

replaceValuesInObj(obj, 'charlie', 'delta');

// returns { golf: { zebra: 'delta' } };

Add a new key/value pair to an Object (and nested Objects).

Example:

const obj = {
    golf: {
	    zebra: 'charlie'
	},
};

addKeysToExistingObj(obj, 'foxtrot', 'victor');

// returns { golf: { zebra: 'charlie', foxtrot: 'victor' }, foxtrot: 'victor' };

Executing Higher Order Functions

You are provided an Array of Objects representing SNL cast members.

Create altered data sets for the following conditions:

• cast members added from the year 2005 to present
• cast members whose names have more than 10 letters

Make new keys (appearanceNumber, name, and seasonsActive).

Note: The values cannot be directly mapped to new keys

Check provided result below for new data examples. Implement each solution in two ways:

• Chaining native methods or other functions
• Using the native method of reduce

Constraints:

Do not create any unnecessary storage variables outside your Higher Order Functions. Your result should look like this:

[
  {
    appearanceNum: '#8',
    name: 'Sterling K. Brown',
    seasonsActive: 6
  },
  {
    appearanceNumber: '#9',
    name: 'Jay Pharoah',
    seasonsActive: 7
  },
  {
    appearanceNumber: '#10',
    name: 'Leslie Jones',
    seasonsActive: 5
  }
]