Questions tagged as 'javascript'

Tagged questions
1
answer

Filter the month inside an object extracted with Object.keys

I am studying react and made a cash flow application using firebase as database. I would like to make a query using "map ()" or some other way I would run the object showing only the entries of the month of sea , but I'm finding it difficult...
asked by 28.09.2018 / 15:38
2
answers

Tooltip Bootstrap 4 does not work

I'm trying to use the Tooltip with Bootstrap 4, but it just does not show up: In HTML it looks like this: <a class="btn btn-sm btn-warning" href="" data-toggle="tooltip" data-placement="top" title="Editar"><i class="fa fa-edit">...
asked by 06.12.2018 / 18:03
2
answers

Problem with conditional on React

I'm trying to do a conditional where the active component depends on a state variable. this.state = { display: 0, } State 0 is the initial state, which is changed when the user clicks a button. Depending on the button the display varia...
asked by 03.12.2018 / 21:52
1
answer

Regressive Counter in HTML & JavaScript [closed]

So, guys, I want to do a countdown timer that tells you the time you came in, and it does the sum for 6hrs and 20mins, and tells you the time you're leaving and picks up that hour and subtracts Current computer time and play pro countdown timer....
asked by 03.12.2018 / 21:20
2
answers

Bank registration via Ajax

Good afternoon. I'm a beginner in the programming world, and I'm developing a web app and I'm having trouble making a sales record in the database. The system must insert new inputs to register more than 1 product per sale. When I press the r...
asked by 04.12.2018 / 18:30
1
answer

HTML code error Hyperlink

Hello everyone. I do not understand much of programming, I got a code and I developed a little according to what I wanted, but the hyperlink of each entry does not work, I tried several ways to solve, but nothing worked so far. Can someone give...
asked by 05.12.2018 / 22:22
1
answer

Sum with javascript returning wrong value

I have some fields on my page and they have values, I get those values and somo, it happens that the value goes wrong, how do I get them from the DOM and ends up coming as a string, I convert to a number, so instead of posting everything the cod...
asked by 11.10.2018 / 18:10
1
answer

How to make a checkbox not selected if there is no previous checkbox selected?

I have a pile of monthly payments, where each one is found in a select. I'd like all of them to be disabled first except the first check, and that by enabling the first check, the second check might be available to be enabled, and if I disabl...
asked by 18.10.2018 / 19:29
1
answer

Javascript to enable button [closed]

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 18.10.2018 / 15:28
1
answer

Disable link in paging menu in jQuery [duplicate]

I have a paging plugin done in jQuery. What I can not do is when I'm on the last page, the link that gives access to the next page is disabled and the user can not click any more. In the same way the button gives access to the previous page. I...
asked by 26.02.2014 / 19:09