জাভাস্ক্রিপ্ট

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ" 
};

const result = Object.keys(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.values(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const info = {
    "শহর": "ঢাকা"
};

const result = Object.assign(user, info);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.create(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.hasOwn(
    user,
    "নাম"
);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.getOwnPropertyDescriptor(
    user,
    "নাম"
);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.getOwnPropertyDescriptors(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const symbol = Symbol("শহর");

user[symbol] = "ঢাকা";

const result = Object.getOwnPropertySymbols(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.getPrototypeOf(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const info = {
    "শহর": "ঢাকা"
};

const result = Object.setPrototypeOf(user, info);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const info = user;

const result = Object.is(user, info);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.freeze(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

Object.freeze(user);

const result = Object.isFrozen(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.seal(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

Object.seal(user);

const result = Object.isSealed(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.preventExtensions(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = Object.isExtensible(user);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

Object.defineProperty(
    user,
    "শহর",
    {
        value: "ঢাকা"
    }
);

console.log(user);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

Object.defineProperties(user, {
    "শহর": {
        value: "ঢাকা"
    }
});

console.log(user);
</script>

<script>
const user = [
    "হ্যালো",
    "বিশ্ব",
    "হ্যালো"
];

const result = Object.groupBy(
    user,
    value => value
);

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = user.hasOwnProperty("নাম");

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const result = user.propertyIsEnumerable("নাম");

console.log(result);
</script>

<script>
const user = {
    "নাম": "মোঃ আরিফ",
    "দেশ": "বাংলাদেশ"
};

const info = Object.create(user);

const result = user.isPrototypeOf(info);

console.log(result);
</script>