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Answer: The output will be:
|
1 2 |
location is null 1/1/0001 12:00:00 AM |
Although both variables are uninitialized, String is a reference type and DateTime is a value type. As a value type, an initialized DateTime variable is set to a default value of midnight of 1/1/1…
Answer Although typeof bar === “object” is a reliable way of checking if bar is an object, the surprising gotcha in JavaScript is that null is also considered an object! Therefore, the following code will,…
Answer: In Ruby, the only values that evaluate to false are false and nil. Everything else – even zero (0) and an empty array ([]) – evaluates to true. This comes as a real surprise…
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 –…
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