All Questions

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What is the purpose of virtualenv and why not install globally?

I saw that VirtualEnv provides a way to create different environments for application development in Python . And, whenever we use it, you need to install the dependencies of a specific project. For example, I realize that when i...
asked on 04.05.2016 / 22:25
1
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Automatically post to Twitter from the PHP site

I'm developing a backoffice in PHP. And every time the administrator adds a product, that product will automatically be published to Twitter. On Twitter it will appear: the product name your image and the link to the site I had t...
asked on 14.05.2014 / 12:20
1
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What is an Array-Like?

A given string is an array-like, and a given number is not. Already their respective objects are array-likes (the objects themselves), right? An object declared, a DOM Object is also an arraylike, correct? Everything is array-like minus boolean...
asked on 10.11.2014 / 23:25
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What is the difference between the Height and ClientHeight properties of a TForm?

In Delphi a Form has 2 properties to set its height: Height and ClientHeight . But what is the difference between the Height and ClientHeight properties of a TForm?     
asked on 30.10.2014 / 19:45
2
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Counter properties in CSS. What do they serve and how do they work?

Recently I was studying CSS and discovered counter-reset and counter-increment , but I did not really understand the properties and I had some doubts. Questions What is counter-reset and counter-increment in C...
asked on 26.09.2018 / 15:05
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How to set and get application version

I'm almost done with my first android app, and I made an "envelope" page and manually entered the version number. Can I set the version somewhere? and how can you get it within the program?     
asked on 27.05.2016 / 22:46
2
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Subtract dates in JAVA in taking the difference of days

I need to calculate the day of pregnancy that a woman is, having the information of the date the woman became pregnant and the date today. I have the following statement: Date dtToday = new Date(); //pega a data de hoje Data dtEngravidou =...
asked on 01.07.2014 / 15:47
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Select fields from another table with multiple foreign keys

I have 4 tables: Lojas(nomeLoja, *IDloja*, morada, telefone, email) Bancos(nomeBanco, *IDbanco*, morada) PlanoContas(*conta*, descricao) Gestao(NIB, nConta, conta1, conta2, IDloja, IDbanco, *IDgestao*) conta1 and conta2 are...
asked on 13.05.2014 / 18:16
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Validate decimal numbers in Javascript

What is the simplest and most correct way to validate a decimal number in Javascript? For example, how to implement a IsNumeric function that has the following Test Cases: IsNumeric('-1') true IsNumeric('-1.5') true IsNumeric('...
asked on 05.06.2014 / 04:28
3
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How to put caption in an ImageView

I would like to know if it is possible to put caption in a ImageView similar to the image below, if possible an explanation or study material.     
asked on 25.04.2014 / 14:56