Posts by Lucas Oliveira • 458 points
18 posts
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3
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answer142
viewsQ: Regex is not checking the accented character, even though it is in the expression
I have the following Python regex to filter my application text input: import re good_chars_regexp = re.compile(r"^[A-Za-záéíóúÁÉÍÓÚâêîôÂÊÎÔãõÃÕçÇ00-9\,\.\-\?\"\'\’\!\“\s\;\:\“\”\–\‘\’\’\/\\]+$",…
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answer336
viewsQ: Modify only one React Hooks component
Hello, I’m running a simple application on Reactjs. I created some check buttons, which when clicked changes color, but I press these buttons on a map and when I click to change the color of one,…
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1
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answers50
viewsQ: Doubt Array Solidity
I am trying to assign the value of an array to two arrays, as follows: pragma solidity ^0.4.24; pragma experimental ABIEncoderV2; contract ArrayExamples { int[][] public matriz; // Os dados são…
blockchainasked Lucas Oliveira 458 -
1
votes1
answer59
viewsQ: Doubt with matrix in Python
I have the following code: matrix = [[0 for x in range(2)] for y in range(10)] I’m trying to implement this in another language, in which there is no such structure above for matrix creation. I…
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4
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answer93
viewsQ: Data Cleanup - SQL Server
I’m working with a column of phones, but some lines have two phones separated by ";". 99999999 ; 99999222 12345678 ; 87654321 40028922 123123456 ; 1122334455 My goal is to put duplicate phones on…
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answers245
viewsQ: How to remove a character-specific string from a Python string
I would like to know how I can remove a specific string string string. The string would be: \r\n. The texts are as follows:: 'Let the Bird of loudest lay r non the Sole Arabian Tree r nHerald Sad…
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answer117
viewsQ: Keras Model for Tensorflow
I am learning Tensorflow and am trying to pass a Deep Learning model in Keras to Tensorflow, however, I am having difficulties. Model Keras: model = Sequential()…
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answer53
viewsQ: Post loaded with ajax in repeated wordpress
I have a post page on my site, in it are shown all the posts created in wordpress, however are many post, so I put an application that shows only 5 post on the page, and when you click the button…
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answer77
viewsQ: Use of React in backend and small projects
You can integrate the React application with some back end language? I can apply React to small projects or only when needed? React came to break the standard web development paradigm, where I…
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1
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answer125
viewsQ: Grab information from a JSON file with spaces
I am developing an application using Javascript and I need to get some information from a JSON file, but this file comes with spaces. I wonder if it is possible to get this information even with the…
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1
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answer417
viewsQ: Take string size inside array with PHP
I have the following problem, in the program below, I took the forms of a site, but I have to specify the exact length of the line that has the form(96), I would have the possibility to take this…
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answer410
viewsA: Change a certain line in a PHP file
I managed to change the line this way. In the case it was a very specific line. <?php $url = file_get_contents('index.html'); $var1 = explode("<form", $url); $string = array(); for($i = 0; $i…
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answer410
viewsQ: Change a certain line in a PHP file
I’m writing an application to change a particular line in an HTML file. I’ve been able to locate the word I want to replace, but for that, I need the line number to write the new content. function…
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1
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answer1398
viewsQ: Picking up an element of a class with Javascript
I want to take an HTML element that is with a class, but that same class is in other elements. <img class="imagens-noticias" src="imagens-noticias/noticia-1.png" alt="imagem"> <img…
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answers55
viewsQ: Playing sound with MIDI - Java
I wrote a code to play a certain sound, but it’s not playing. package reprodutormusical; public class TestDrive { public static void main(String[] args) { MiniMusicApp mini = new MiniMusicApp();…
javaasked Lucas Oliveira 458 -
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votes3
answers137
viewsQ: Access to pointer on main
Why in the statement as argument in function main(): char* argv[] instead of char argv[] i can access the information. I know one is pointer. I can’t access when it’s not pointer. #include…
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answers524
viewsQ: Problem storing data in Array
I’m creating a program that stores a person’s tasks in an array, and shows them these tasks. But I’m having trouble showing the tasks. I can’t show the old tasks. Only the last task typed is shown.…
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10
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answers925
viewsQ: How do C’s hands work?
first What is the difference between declaring: char* s and char *s? 2nd It is always necessary to use the function malloc when declaring a inter? Example: char* s = malloc(sizeof(char)); //ou…