Posts by stderr • 30,356 points
651 posts
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answer5078
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viewsA: Block keyboard and mouse or prevent user from leaving window in C#
You can use the function BlockInput, with it you will block the use of the keyboard and mouse. using System.Runtime.InteropServices; [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll",…
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viewsA: Why are there so many ways to check if a value is NULL? How to standardize?
The function is_null() does the same as NULL ===. They both do the same thing, but in terms of speed, NULL === is faster, 14 times faster (according to this comparison here). In relation to the…
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viewsA: How to replace multiple using variable as first parameter?
You can do it like this: var ola = "ola mundo ola mundo"; var variavel = "ola"; var re = new RegExp(variavel, 'g'); ola = ola.replace(re, 'xxx'); alert(ola); // xxx mundo xxx mundo DEMO Instead of…
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viewsA: Convert Mysql date (YYYY/mm/dd h:m:s) to dd/mm/yyyy
This should work: setlocale(LC_ALL, "pt_BR", "pt_BR.iso-8859-1", "pt_BR.utf-8", "portuguese"); date_default_timezone_set('America/Sao_Paulo'); $olddata = '09/02/2015 15:55:30'; $data =…
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answers2792
viewsA: Lifecycle Delphi datasnap which to use?
The estate LifeCycle has basically three options: Server: The server maintains a single instance of the class on the server, all clients upon requesting that class will always receive the same…
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answers1135
viewsA: Format Customformat value in Livebinding
If you are passing a value with floating point, do not use format %d, it is used to whole, use %m for monetary values or %n for floating point values. Your code can look like this: Format('%n',…
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answer838
viewsA: Android Alarm / IOS with Phonegap
A plugin that can be used is the Cordova Local-Notification. The essential goal of local-Otifications is to allow an application to inform its users that it has something for them - by example, a…
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answer1152
viewsA: How do I update a datatable line with jquery?
Use the method fnUpdate for that reason. Update a cell or table row - this method will accept a unique value to update the cell, an array of values with a element for each column or object in the…
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answer44
viewsA: What is the name of these instructions in Wordpress?
Maybe you are looking for this page, Function Reference. See also PHP Documentation Standards.…
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answers8700
viewsA: Typeerror: not all Arguments converted During string formatting (Python 3.4)
As already mentioned the correct is to represent these floating values with a point . and not a comma ,. Behold here the problems and limitations of floating values in Python. Your code should look…
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answers18486
viewsA: What is the Role attribute for?
This attribute serves to give more semantics to the elements of marking-based documents, the from 2013 onwards to W3 began to recommend its use. In Portuguese Roll means Paper, in the sense of…
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answers204336
viewsA: What is the difference between asynchronous and synchronous communication?
I will try to complement the answer from Lolipop. :) Synchronous and Asynchronous communications are two distinct methods of synchronization of transmitting, each has its advantages and…
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answers1998
viewsA: Open xls (password protected) file in Delphi and save data in Firebird table
This can be done through architecture Component Object Model. The Component Object Model (COM) is a software architecture that allows applications to be built from binary software components. COM is…
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answers6834
viewsA: Find character in string
Use the function strpos. Its parameters are: $haystack: To string in which the search will be made. $needle: Characters to be searched. $offset: This parameter allows you to define from which…
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answers1527
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viewsA: Identify Visitor and User in Wordpress
You must be looking to use the function is_user_logged_in(), if the user is logged in the return value is true, otherwise it is phony. if ( is_user_logged_in() ) { // Fazer algo quando esse usuário…
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viewsA: Is using addslashes against SQL injection safe?
There are chances to leave the system vulnerable. That one article, addslashes() Versus mysql_real_escape_string() cites a good reason for this. In free translation: If I want to attempt an SQL…
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viewsA: Warning: simplexml_load_string()
I think you should be looking to use the function file_get_contents and not get_content. Your code should look like this: $mp3_search =…
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answer77
viewsA: If string starts with "www" automatically insert "https://"
Are you using the denial operator !, so it doesn’t work the way you expect it to. if (!s_url.startsWith("www.")) { myWebView.loadUrl("https://" + s_url); } The second line only comes into action…
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viewsA: Add hours with the Final Countdown plugin
It can also be done like this: var data1 = new Date ('2015/02/16'); var data2 = new Date (data1); var addHoras = 21; data2.setHours ( data1.getHours() + addHoras); $('#clock').countdown(data2,…
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answers894
viewsA: Problem with SUDO "must be setuid root"
This problem probably occurred after you executed the command below (source): sudo chown -R `whoami` `npm -g bin` When using the command chown with the option -R you tell the system to change the…
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viewsA: How to search for old files on Linux?
To search for files that have a certain age, you can use the grep in conjunction with the find through the option -mtime to carry out the search. The example below will look for the word foo in all…
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viewsA: Does using a token in an HTML form really protect against CSRF?
Utilise tokens only makes prevention, there is a real guarantee of protection. This attack can be prevented in several ways. Using Synchronizer Token Pattern is a way that the application can rely…
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answers1844
viewsA: How to declare an anonymous function in Python?
You can create anonymous functions in Python via an expression lambda. According to the documentation: lambda expressions have the same syntactic position as expressions. They are a shortcut to…
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answer642
viewsA: Picking multiple values between tags
The function below scans a text, and checks on a loop if the current element contains the tag, if you have, add in the Stringlist. This information is obtained through the interface IHTMLDocument2.…
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viewsA: How to select all characters except some specific words using regex?
To remove a certain character from a sequence just make the following substitution (example in Javascript): var texto = 'xxxxxxxxboloxxxxxxxfarinhaxxxxxxacucarxxxx'; var expReg = /([x]+)/g; // Vai…
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viewsA: How to check if a variable was set in Python?
Another alternative way is the function dir(): Without arguments, returns a list of names of the current scope. With argument, returns a list of valid attributes for this object. See the examples…
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answer5815
viewsA: Changing values of a two-dimensional array - PHP
You can walk through it like this: foreach($myArray as $key => $subarray) { $myArray[$key]['interesse'] = '1'; // ... } DEMO…
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viewsA: How to send/receive data using Sendmessage or Postmessage API?
You are passing the data through lParam, wParam comes to the other empty process. SendMessage(HWND_BROADCAST, WM_SHUTDOWN_THREADS, 0, LongInt(@MyData)); ↑ If I understand what you want to do, you…
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answer135
viewsA: include bootstrap in Jsfiddle
To use Bootstrap in Jsfiddle you have to include it in external resources: JS: http://netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js CSS:…
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answer180
viewsA: Matrix image sorting plugin
I found two plugins who do what you want: Jquery Shapeshift Shapeshift is a plugin that will dynamically organize a collection of elements in a grid and column system similar to Pinterest. What the…
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answer532
viewsA: Sublime Text 2 update right on site
You can use the package SFTP, for Sublime Text 2 and 3. Characteristics: Mapping a local folder to a remote folder. Upload files, folders or just the changes since your last commit. Upload all open…
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viewsA: What is the best way to convert HTML entities with Javascript?
This can also be done (code taken from mustache.js): var entityMap = { // Lista de entidades "&": "&", "<": "<", ">": ">", '"': '"', "'": ''', "/":…
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answer60
viewsA: $. inArray() return not expected
You are using Semicolon as delimiter(;), but what is right is a comma(,). var cookiesplit = array.split(','); The method .InArray() search for an exact value in a array, is returned -1 because there…
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viewsA: PHP route system using Google Maps API
For this you can use the Google Distance Matrix API for distance and travel time to an array of origins and destinations. This service does not return detailed route information. The Distance Matrix…
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viewsA: How do I know if request.FILES is empty?
Like the attribute FILES of HttpRequest is a dictionary, you can check it in several ways: files = {} if not files: print "Dicionario vazio!" if not bool(files): print "Dicionario vazio!" if…
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viewsA: Get the highest value of an array in Lua
The code posted by you works as expected. tem_array = {10, 2, 3, 20, 1} arraymax = math.max(unpack(tem_array)) print (arraymax) -- 20 DEMO Another way is to classify the elements through the sort()…
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viewsA: How to remove the first element from a list in python?
The method can also be used del to remove an item by specifying its index. lista = ['foo', 'bar', 'baz'] del lista[0] print lista # ['bar', 'baz'] The difference between pop and del is that pop…
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answer508
viewsA: Hide div when input on Focus, css
You can do something like this: div { background: #f0a; display: true; height: 200px; width: 200px; } input:focus + div { display: none } DEMO You can use classes or identifiers like this:…
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viewsA: Desktop widgets in Java
One of the alternatives you can use to do this is the Google Web Toolkit. Google Web Toolkit is an open source Toolkit allowing developers, create applications with Ajax technology in Java…
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viewsA: How to recover the number of characters via regular expression?
With regular expressions it should not be possible to do this as quoted in reply of Miguel Angelo, however, through a loop you can get the amount of occurrences of the characters and store them in a…
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viewsA: Error in counting uppercase characters
Another alternative using regex. $("#senha").change(function(){ var senha = $("#senha").val(); $('#teste').html(senha.replace(/[^A-Z]+/g, '').length); }); DEMO The expression [^A-Z]+ will only match…
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answer109
viewsA: Set default value in Textarea’s if empty
With Jquery you can do this in the event .change, this event is triggered when the value of an element is changed. In this event it can be checked whether the textarea is empty, if it is, we put a…
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answers6933
viewsA: How to download a . pdf file with JSF?
On a button call the method below. // Aplicável ao JSF 2.x private static final String PDF_URL = "http://.../file.pdf"; public void download() throws IOException { FacesContext facesContext =…
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viewsA: Just read the first character of a string
Another alternative is the function substr: if (substr($myrow['Noticia'], 0, 1) !== '<' && $myrow['Noticia'] !== 'Nao') { echo "Noticia mal colocada!"; } Where substr ( string $string ,…
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answer51
viewsA: Cmake 3.11 failed to compile REGEX
Missing close parenthesis at the end of the line. string(REGEX REPLACE "^.*${FLEX_EXE_NAME_WE}(${FLEX_EXE_EXT})?\"? (version )?([0-9]+[^ ]*)( .*)?$" "\\3") In the code from Findflex.cmake that line…
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viewsA: Upload photo and save original photo and one cut?
When saving the modified image, save the original as well: $imagem = $_FILES['arquivo']['name']; ... .. . $resize_tamanho = new resize($_UP['pasta']. $imagem);…