JavaScript Introductory Programming Exercises

Programming challenges

A function that defines "color change"

Tips:

Second, define the function of "change the width and height"

Tips:

Iii. functions that define "hidden content"

Hint:obj.style.display= "None";

Iv. functions that define "display content"

Hint:obj.style.display= "block";

Five. Define "Cancel Settings" function

Use the Confirm () OK box to confirm whether to cancel the setting. If you restore all of the above settings to the original value, do not do the operation.

When clicking the corresponding button, do the corresponding action, add the corresponding event for the button

JavaScript Introductory Programming Exercises