জাভাস্ক্রিপ্ট Programming for Beginners featuring JavaScript

// write a custom function

/*

write a custom function called "sayHello"

it should alert "Hello" when you call it

call the function

*/

// solution:

function sayHello() {

  alert("Hello")

}

sayHello()

// write a function with parameter

/*

write a function name "alertYear"

add a parameter "year"

the function will alert the year value

call the function with the parameter

*/

// solution:

function alertYear(year) {

  alert(year)

}

alertYear(2002)

// write a function with return

/*

write a function called "doubleValue"

add a parameter called "number" in the function

add the following inside the function:

return number * 2

call the function with any number and this time save the output

to a variable called "result"

alert the result

*/

// solution

function doubleValue(number) {

  return number * 2

}

let result = doubleValue(100)

alert(result)

// create a custom object

/*

convert the following data to

an object called "person"

let firstName = "Tamim"

let lastName = "Iqbal"

let currentTeam = "Khulna Tigers"

let runsInODI = 8357

let runsInT20 = 1758

*/

// solution:

let person = {

  firstName: "Tamim",

  lastName: "Iqbal",

  currentTeam: "Khulna Tigers",

  runsInODI: 8357,

  runsInT20: 1758,

}

// access and change properties

/*

alert the runsInODI property

change the currentTeam to "Khulna Tigers"

alert the currentTeam property

*/

let person = {

  firstName: "Tamim",

  lastName: "Iqbal",

  currentTeam: "Dhaka Dominators",

  runsInODI: 8357,

  runsInT20: 1758,

}

let person = {

  firstName: "Tamim",

  lastName: "Iqbal",

  currentTeam: "Dhaka Dominators",

  runsInODI: 8357,

  runsInT20: 1758,

}

// solution

alert(person.runsInODI)

person.currentTeam = "Khulna Tigers"

alert(person.currentTeam)

// write a method

/*

add a new method "sayName" for the following object

the method will alert the value "My name is Tamim Iqbal"

call the method

*/

let person = {

  firstName: "Tamim",

  lastName: "Iqbal",

  currentTeam: "Dhaka Dominators",

  runsInODI: 8357,

  runsInT20: 1758,

}

// solution

let person = {

  firstName: "Tamim",

  lastName: "Iqbal",

  currentTeam: "Dhaka Dominators",

  runsInODI: 8357,

  runsInT20: 1758,

  sayName: function() {

    alert("My name is Tamim Iqbal")

  }

}

person.sayName()