Questions tagged as 'javascript'

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How to extract data from excell to Generate graphs?

I have an excell table with 50 rows and 10 columns, containing data students enrolled in a contest. I have to create graphs from these data. Could anyone suggest a way to extract and work these data in html and javascrit?     
asked by 07.04.2016 / 14:42
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document.writeln () is deprecated javascript

When document.writeln() used to display text in html is deprecated? Does anyone know of another way to display a string on the screen? Follow xhtml <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xh...
asked by 04.04.2016 / 23:53
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How to pass numbers to alphabet letters

Converts numbers from 1 ao 26 to A - Z of the Alphabet. I have a directory with several files and I wanted to make a "FOR" for, ... the name (file). I'm doing this with files named by ordinal numbers, but I'd like to do this with f...
asked by 27.02.2016 / 02:19
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generating an array of [month / year] to send to an ajax

I'm not sure if I've specified the title correctly, but, come on, I have a url that returns a json with a value from the bank, the value comes this way: "01/2010" through "12/2016". I created a loop that brings me this way: val['01/2010']...
asked by 16.08.2016 / 18:11
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Detect text inside a special character and convert it into a PHP function

You can go through a textarea to detect a text within the [text] character and transform it into a PHP ? Summarizing: 1. Go through a textarea 2. Find a text containing around [] 3. Converts it into a php function 4...
asked by 03.08.2016 / 16:30
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First item returns undefined

I'm trying to print a split , but after passing for , the first value returns as undefined , could you tell me what it could be? function parteTexto() { var teste; var texto = document.getElementById("caixa").value;...
asked by 23.09.2017 / 04:28
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How to change the layout of a page without touching the source code?

The following code does the following: When I click the button Show Button another button appears, however, let's suppose I click F5 , the button disappears. What tool could I use to prevent this from happening and the button stays ther...
asked by 03.10.2017 / 21:30
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How to do that when clicking on a key a submit is sent [duplicated]

Well it's the following, I have a chat on my site, the chat has a text field and a send button that is to send. In other words, the person types in the text and then has to click the send. I'd like to know how you would do that by clicking...
asked by 05.12.2015 / 00:32
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Fixed form goes over the menu

I have an application where I have a normal menu at the top of the page, and just below it a form, where this form has to be fixed, in a way that when I scroll the page down, that form is at the top of the page , and the rest of the page runs be...
asked by 24.11.2015 / 12:42
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Call javascript function with null parameter

The verificaCampoVazios function has two parameters ( fs and campos ). verificaCamposVazios = function (fs, campos) { console.log(campos[0]); } Example of how function is called: verificaCamposVazios(fsInformacaoCandi...
asked by 22.12.2015 / 17:05