Learning JS Course @Sololearn - Day33

Learning JS Course @Sololearn - Day33

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2 min read

Today #day33 of #100daysofcode, I have completed 4.28 lesson and 4.29 module 4 quiz and 4.30 "Currency converter" code project in JS course. @Sololearn

1. alert prompt confirm

i. The Alert Box

  • Javascript has alert prompt confirm popup boxes.
  • an alert box is used to relay information to the user.
  • user must click procede in order to close the alert box, so be cautious.
  • alert function only takes strings I.e texts to show to the users.
  • alert() can be called with any number of arguments but it will only use/accept the first one.
  • alert() his for displaying a message in a box.

ii. Prompt Box

  • a prompt box is use to take user input.
  • the user must click OK or cancel to exit the prompt box.
  • the user clicks okay prompt will return input value hand clicking cancel will return null value.
  • the prompt takes 2 parameters.
    • The first is the label, which you want to display in the text box.
    • The second is a default string to display in the text box (optional). Ex:
          ```var user = prompt("Please enter your name",'noname?');
                alert(user);
          ```
      
  • prompt is for getting input from the user

Code: Click

iii. Confirm Box

  • to get true or false from user use Confirm box.
  • the user must click OK or cancel to proceed.
  • clicking OK returns false and clicking cancel will return false.

Images of lesson completed:

  • 4. day33 4.28 lesson completed.png

  • 12. day33 module 4 completed.png

Conclusion

  • The Alert Box
  • Prompt Box
  • Confirm Box
  • quiz
  • code project [click]

My Code:

References Sololearn

Author: Dheeraj.y

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