Posts by alan • 1,908 points
95 posts
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viewsA: Array reading
For your code to work, just replace: var len = person.length; For: var len = Object.keys(person).length;
javascriptanswered alan 1,908 -
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viewsQ: How to overwrite a root HTACCESS in a subfolder with another HTACCESS
I have a file HTACCESS at the root of my project. However, I have a subfolder that also has a file HTACCESS. But I’m not sure how to make this code override part of the HTACCESS root. HTACCESS root:…
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answer32
viewsA: Input cache when updating page
Yes! You can use localStorage <!DOCTYPE html> <html> <head> <title>Teste</title> <script…
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answer30
viewsQ: Redeem value of object
I own an object like this: SimpleXMLElement Object ( [0] => 1bf7080ac1c04e4e9de924c0a7d9444d ) But I can not only redeem the value of it. I have tried the following ways: print_r($obj{0});…
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answers80
viewsQ: Add Next and Previous buttons embedded in HTML5 Video Player
I’m looking for a way to do something that Youtube has in their app, however, in an HTML5 video player using only HTML, CSS and Javascript/Typescript. Look at: I already have all the code and logic…
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answer55
viewsA: how to use the LPAD function with COUNT?
After searching a little, discover that this may be a bug generated by Drive. Thus, the problem that was occurring to me, will not necessarily happen on other computers. To fix this, and have the…
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answer55
viewsQ: how to use the LPAD function with COUNT?
For example only: I am trying to select where a zero will be added to the left if the number is less than 10. Examples: SELECT COUNT(1); Returns => 1 SELECT LPAD(1, 2, 0); Returns => 01 SELECT…
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answer204
viewsQ: Create background-image directive
I have an image directive, where if an image does not load I display a default image. Directive: import { Directive, Input, HostBinding } from '@angular/core'; @Directive({ selector: 'img[default]',…
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answer1154
viewsA: Angular validate password field with Formgroup
Some time ago I discovered the problem and forgot to post the answer. The mistake was in: onRegisterForm.get('senha').hasError('minLength') Where minLength should be in minuscule minlength In this…
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answer235
viewsA: Value in input element is not displayed - (although value is being loaded correctly ) - Jquery
Just completing my comment. If you want to see this attribute in the Console (This is not necessary). You can do it: $('#txt_titulo').attr('value', objeto_menu.titulo); But the most common is to use…
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answers277
viewsQ: Inject service in the page’s press.module
I’m working with Ionic 3 and I’m using some of your native services, like logging in with facebook. Everything works perfectly, my problem is in something I’m trying to do to organize my code more.…
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answers1525
viewsQ: Restful DELETE method
Within the Rest architecture we have the verbs POST, GET PUT and DELETE. Among the various examples and tutorials I studied. The use of the verbDELETE is always exemplified with DELETE /addresses/1,…
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answers131
viewsQ: PHP Methods Static
PHP allows me to have methods static. Whose advantage is to have them accessible without the need to instantiate the class Documentation. However, in the case of methods static, I can use them both…
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answer53
viewsQ: Differences between ways to reference a namespace
I’d like to understand why in some code examples, people import classes as follows: use \Firebase\JWT\JWT; and not just: use Firebase\JWT\JWT; Is there any difference in starting with a "\"? In my…
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answers2906
viewsA: How to add a class to an HTML element via Javascript. In my case, I need to add a class to the H1 element below
Edited Just replace "your-class" with the name of your class. See the example below: var div = document.createElement("div"); var h1 = document.createElement("h1"); var p =…
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answer97
viewsA: How to receive the value of <select> in PHP when selecting an option
I don’t know if you really need to do this with pure javascript. But with jQuery it’s much easier. See an example below: Javascript / jQuery and HTML: $('#idCourse').on('change', function() {…
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answer162
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viewsQ: Correct way to pass headers to the Httpheaders Object
I’m trying to figure out how to pass headers the correct way to instantiate an object HttpHeaders in the Angular 5. I have the following code: postApi(body: any, route: string) { return new…
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answer1154
viewsQ: Angular validate password field with Formgroup
I have the following code: TS code: ... onRegisterForm: FormGroup; ngOnInit() { this.onRegisterForm = this._fb.group({ nome: ['', Validators.compose([ Validators.required ])], email: ['',…
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answers179
viewsA: Add code Analytics in Wordpress blog
Finally I found it. Thanks to your help. Thanks to everyone who tried to help with tips in the comments :D Before I was always accessing Appearance -> Editor, selecting the current theme and…
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answers179
viewsQ: Add code Analytics in Wordpress blog
I’m trying to change the code Analytics of a Wordpress blog. However, I don’t have much knowledge and I’m having trouble figuring out how the code was added. From what I research, I managed to…
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answer39
viewsQ: boquear directories and files with . htaccess
I don’t know much about .htaccess and I came across a project where it blocked some images that I climbed into an img folder of the project. RewriteRule ^(css|js|img)/(.*)$ statics/$1/$2 [L] But…
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answer2169
viewsQ: Best way to register two foreign keys in a table
I have 3 tables, being them: personal, pesso_juridical and addressee. Both the tebela pessoa_fisica, as for tebela pessoa_juridica use the table endereco. I would like to add two foreign keys in the…
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answer60
viewsQ: Best way to filter (validate) rescued $_SESSION data
I am creating a register and I have a session $_SESSION['usuario']['cpf']; I am validating the data I receive by POST and GET with the function filter_input PHP. However, the documentation says:…
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answer31
viewsA: Rename part of the parameter names of a precedent
Unfortunately I ended up discovering that this is not possible: This statement can be used to change the characteristics of a stored procedure. More than one change can be specified in an ALTER…
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answer31
viewsQ: Rename part of the parameter names of a precedent
I have some procedures where parameter names start with: "p_". It is possible to change in a unique way and via code all the names of all the procedures that start with this abbreviation by: "abc_"…
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answers4790
viewsQ: How to go up and configure a project with Laravel on the server
I’m starting with Laravel 5.3 and learning to explore all of its resources. But I have a question. What would this project of mine look like on the server (in production). Today my projects are…
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answers2287
viewsA: Remove created image-div spacing
Another solution I found was to add a display: block; in the image! .box-img { width: 100%; max-width: 200px; background-color: red; // tentando remover padding padding: 0 !important; } .box-img…
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answers2287
viewsQ: Remove created image-div spacing
Would you like to understand why a spacing is created between the image and the div? How is it possible to see when adding the red background. And how to correct without using position or margin and…
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answer2482
viewsQ: How to fix charset="UTF-8" in application nodejs within the socket.io
I have a chat app and I’m working with nodejs and socket.io. But I’m having trouble with name coding. The following name: Guilherme Loução is coming as: Guilherme Louã§. I have already saved the…
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answers2817
viewsA: view var Javascript in div html
Try it like this: <section class="content"> <span></span> <span></span> <script type="text/javascript" src="../js/purl.js"></script> <img…
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answer147
viewsA: Margin conflict in css
Edited! To fix this. Remove the float: left of the classes .horizontal-menu and .horizontal-menu li and add display: display: inline-block; in these two classes. See below: body { margin: 0;…
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answers140
viewsA: Two fields of a table associated with One field of another table
You are using INNER JOIN so select will only return the results if the conditions shown are true. You said the records have the following values: Table teams: id = 1, name = Barcelona and photo =…
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answer86
viewsQ: How to calculate the speed of a user’s internet connection?
I am trying to calculate the connection speed in MB of a user who access my site. But I couldn’t find much on the Internet other than ready-made programs and websites that already do that. The only…
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answer158
viewsQ: How the PHP include function works behind the scenes
Let’s say I have two pages, one call teste.php and the other teste2.php. On the page teste.php I have the following code: ... $usuario = new Usuario(); $usuarios = $usuario->getUsuarios(); ...…
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answer297
viewsQ: PHP Object Injection
On the website of OWASP It explains this kind of flaw that makes code injection possible. But one part was not clear to me and if anyone who understands can clarify me. The excerpt says the…
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answer42
viewsA: (Select query) How to make it more dynamic?
I do this way using PDO: /** @var PDO */ private static $connect = null; /** * Conecta com o banco de dados com o pattern singleton * Retorna um objeto PDO! */ private static function Conectar(){…
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answer398
viewsQ: PHP Stored Security XSS and SQL Injection
Is there any security breach or possibility of attacks on the code box below? public static function prepareQuery($query, $params){ $preparedQuery = self::getConn()->prepare($query); foreach…
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answer331
viewsQ: PHP Security - Avoid SQL Injection
It’s wrong or unsafe to use: if ($_SERVER['REQUEST_METHOD'] === 'POST') { foreach ($_POST as $key => $value) $$key = $value; ... } Let’s say I have this code, but use a Procedure call with…
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answer63
viewsQ: Best way to apply the concept of Object Orientation
I own a class Usuario class Usuario{ } Let’s say that this user needs to access some different Web Services for resources and information. I then thought about creating a class called WebService and…
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answers1106
viewsQ: Block direct access to a URL via webconfig
I have an old system in classic ASP and need to do some implementations. I have a file web.config for this application and would like to know if it is possible to block direct access to a video URL.…
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answers3864
viewsA: How to remove video download option
I found a solution: https://jsfiddle.net/u1wqb4kz/ // Remove botão de download de vídeos video::-internal-media-controls-download-button { display:none; } video::-webkit-media-controls-enclosure {…
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answers3864
viewsQ: How to remove video download option
I would like to remove the video download options (I know this will not prevent downloading it through other means. But the idea is just to make it harder for more lay users). I have the following…
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answer259
viewsQ: Nusoap return $HTTP_RAW_POST_DATA empty
I’m trying to create a Webservice using the nusooap. However my return is always empty. Online is created the webservice and I can see the methods and xml (WSDL). But when trying to access via…
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answers124
viewsQ: How to set time_zone using PDO
I have a connection using PDO what arrow the SET NAMES UTF8: $options = [ PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES UTF8" ]; But I’d like to add the SET time_zone='America/Sao_Paulo'.But in…
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answer52
viewsQ: Retrieve Browser Information in Procedure Mysql
You can pick up browser information on a PROCEDURE via Mysql code? No need to pick up via back-end code and pass as parameter. That is, Mysql has some function that returns information from the…
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answer40
viewsQ: Should I use prepare in Procedures
Below I have an excerpt of code adapted to illustrate this question: <?php $params = [ ':codUser' => $_SESSION['data-user']['codigo'], ':codCarrinho' => $codCarrinho, ':codPremio' =>…
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answers490
viewsQ: Best way to add product to shopping cart
I have a method that adds product to cart/Session. But I think I’m using a lot of code for this and would like to do it in a better or more simplified way. Any hint? public function…
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answer1513
viewsQ: How to identify the child element clicked through the event click on the parent element
I have the following code: <div class="tipo-cadastro"> <div class="box-logista active">Logista</div> <div class="box-distribuidor">Distribuidor</div> </div> and…
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answer1391
viewsQ: Connection with Webservice SOAP WSDL with XML return
I have the following code that works perfectly. The return of the webservice is a XML, but the return I’m getting is a string. What should I do to receive the XML as return and not a string? $client…