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JS Fundamentals: Objects, Arrays, and Functions

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Objects & Arrays

Exercise: Object Getters & Setters

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Prompt 1

Implement a method, getValue that takes an object and key name and returns the value associated with that key or a default value if supplied.

Definition: getValue(object, key, [defaultValue])

Example Usage:

const who = {name: "Colonel Mustard"};

getValue(who, "name");

// => "Colonel Mustard"

getValue(who, "story", "We don't know yet.");

// => "We don’t know yet";

Code here

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Solution

The solution is in the solution branch, which can be checked out in the

Repl.it⁠

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the solutions are also available below.

getValue Solution

Prompt 2

Implement setValue :

Sets the value at property of object. If the property doesn't exist, it's created.

Note: This method mutates the original object.

Definition: setValue(object, key, value)

Example Usage:

const who = {name: "Colonel Mustard"};

setValue(who, "name", "Miss Scarlett");

console.log(who);

// => {name: "Miss Scarlett"}

Code here

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setValue Solution

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`Arrays`⁠

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Exercise: Object Getters & Setters

Prompt 1

Code here

Solution

getValue Solution

Prompt 2

Code here

setValue Solution

Next 👉 Arrays⁠

Next 👉
`Arrays`⁠