Javascript to enable button [closed]

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I have a term of use, and I need the button to be disabled until the user clicks on the "li and I agree to the terms of use.     

asked by anonymous 18.10.2018 / 15:28

1 answer

2

You only use the change event of checkbox to set the value of the disabled property of the button. 

const checkbox = document.querySelector('#chk');
const button = document.querySelector('#bt');

checkbox.addEventListener('change', (e) => button.disabled = !e.target.checked);
<input type="checkbox" id="chk" /> Li e concordo com os termos
<br>
<button id="bt" disabled>Prosseguir</button>
    
18.10.2018 / 15:35
___ erkimt __ dynamic array allocation within a struct ______ qstntxt ___

statement and code:

  

Make a program that stores movies produced by several directors   and:       - Create and read a vector of 5 directors, each containing name (maximum 20 letters), number of films       and movies. The movie member is a vector, which must be created after reading the number of movies. Each       film is composed of name, year and duration.       - Look for a director by name, showing all the movies he has already produced. Repeat the process       until you enter an empty string.

%pre%

My question is: am I allocating the array correctly?

It does not work when I try to put more than 2 movies in the same director! Thank you.

    
______ azszpr336404 ___
  

My question is: am I allocating the array correctly?

Not at all. The allocation was done based on the %code% size, allocating a %code% vector but the %code% type is %code% :

%pre%

In other words, it has allocated a vector of directors and saved it in a double char pointer, so the types and sizes do not play. If your array is an array of %code% to save strings declared as %code% then the correct allocation would be:

%pre%

Note that I omitted cast because it is not required. I should also add that calling the %code% field would be much brighter than it represents, instead of %code% .

But I can not help saying that this does not answer the statement. The statement clearly states that:

  

Each movie consists of name, year and duration

Then %code% should be a structure:

%pre%

And now this would be the structure used within %code% :

%pre%

The allocation would now be:

%pre%

Now it's not enough to adjust the remaining code for this new movie structure.

    
___ Can a foreign key reference more than one table?