Questions tagged as 'javascript'

Tagged questions
2
answers

Voice connection between two points

I would like to study about, read how it is done and all possible details about making voice calls between two points A and B It also works these links between users like viber, WhatsApp, facebook provide. Is it possible to use PHP HTML5 J...
asked by 17.02.2015 / 03:49
3
answers

What is the difference between throw and alert

In the functions below I verify that the throw works the same as the alert. Can I replace it with an alert? Is there any inconvenience? var letters = new Array("A","B","C","D","E") function getLetter(fld) { try { var inp...
asked by 25.09.2018 / 02:52
4
answers

Text that is typed in the Few?

People, I see an effect on the sites. The text will appear (as if someone was typing it). Automatically I related to the marquee, but the effect is not legal. Do you know how to do it?     
asked by 14.05.2015 / 22:37
1
answer

Calculations used to rotate an image on canvas

I have the following code below to be able to rotate an image through canvas . function qs(selector) { return document.querySelector(selector); } function rotacionar(canvas, image, angle)...
asked by 07.04.2017 / 19:08
7
answers

Hide input value

I need to hide / remove the value of my input, but I'm not getting anywhere, where am I going? Thank you very much HTML: <div class="caixa-pesquisa"> <div class="caixa-pesquisa-input"> <input type="text" class="pesqu...
asked by 14.02.2014 / 19:28
2
answers

What are "mixins" in JavaScript?

What are "mixins"? I see in some JavaScript codes and would like to know what it is; actual examples of usage.     
asked by 31.07.2014 / 00:16
1
answer

What is parse, and how DOM parse works in HTML5

I started to study CSS3 in depth, and I ended up wanting to better understand how HTML rendering works in the Document Object Model (DOM), and how to do this joining of HTML and CSS (and JS) style tags in the browser . I've read a lot, but he...
asked by 21.11.2015 / 19:14
3
answers

Automatic calculation in text box

Good morning. Is there any way for the user to type this in a text box: Does a script run the account automatically and result, in this case, = 1? It is also important that he do this with all operations and that it is in pure javascript....
asked by 02.08.2014 / 16:55
2
answers

What exactly is hypertext?

I searched and did not find an answer about this: Is CSS considered hypertext? I have this doubt because PHP, which is hypertext preprocessor, can also preprocess CSS and even JS.     
asked by 11.10.2015 / 04:11
1
answer

What does the semicolon at the beginning of the line mean?

I was analyzing a code and found the following excerpt: ;(function ($, window, document, undefined) { //... })(jQuery, window, document); Notice that at the beginning of the first line, the ";" character exists; (semicolon). What is th...
asked by 02.06.2014 / 13:39