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September, 29 2016: PHP Answer: The correct answer is 18. Here’s why: PHP supports automatic type conversion based on the context in which a variable or value is being used. If you perform an arithmetic…
When we are using jQuery in JavaScript, often we want to take an action based on the state of an element. One that is widely used is if the state of the element is…
How to recover in JavaScript, the value of an option in a dropdown list? Before anything else, we must remember that we can retrieve different information from that option. Let´s take a look at…
The String class in Ruby comes with several built-in search methods of values within a String, but there is none with a straight name as “contains” or “search” that would express the ability to…
If you are using jQuery and want to find out if a particular checkbox is checked, inside jQuery there are some fairly straightforward ways to do this. In this article, we will explore some…
When programming in JavaScript, sometimes we want to manipulate items within an Array. In this article, we show how to remove or add elements in an array using native JavaScript methods. JavaScript –…
Ruby has a creator of random numbers (or aleatory) already integrated into its code, which is the method rand. Since version
Whenever you think of the best way to do something, there are different opinions on the subject. Best in what terms? Security, speed, flexibility, code simplicity, and so on. We hope you will contribute…
In Ruby, a String contains and manipulates an arbitrary sequence of bytes, typically representing characters. When you want to change the contents of a String in Ruby, it should be noted that methods with…
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