Now we will learn how to get text from users
of our site. To do this, HTML provides a
input, which is a text
field for data entry.
This tag has the special
that specifies the initial text that will be
written in the input when entering the page:
The user of our site after entering the page
can change the text of the input. Moreover,
if we have a variable containing a reference
to this input, then the
of this variable will always contain the
current value of the input text.
Let's try it in practice. Let us have an
input with the attribute
<input id="elem" value="text">
Get a reference to this input in a variable:
let elem = document.querySelector('#elem');
And now we will display the current input text:
And now change the text of the input to another:
elem.value = 'new text';
Given an input and a button. On pressing the button, write some text to the input.
Given an input, a paragraph, and a button. By pressing the button, write the text from the input into the paragraph.
Given two inputs and a button. The user enters a number into the first input. By pressing the button, write the square of the entered number into the second input.
Given two inputs and a button. By pressing the button, write the value of the second input into the first input, and the value of the first input into the second input. Your code should work universally, for any input values.
5 inputs, a paragraph, and a button.
Numbers are entered into the inputs. By pressing
the button, write down the arithmetic mean of
the entered numbers into a paragraph.