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Kehinde Egunjobi is a Full Stack developer and mobile application developer creating cross-platform mobile apps who specializes in Flutter and Full Stack Javascript technologies across the whole MERN stack of MongoDB, Express, React, NodeJS. as well…
Whelan shares his story with us, how he has become a Vue.JS expert by learning with the free projects on Education Ecosystem during the Pandemic. He says he has sharpened his programming skills and looks…
Coding non-profits are organizations that want to improve the state of programming and computer science education, and any associated fields. Currently, there are hundreds of coding non-profits around the world. By taking a different approach…
Answer: The problem here is that strpos() returns the starting position index of $str1 in $str2 (if found), otherwise it returns false. So in this example, strpos() returns 0 (which is then coerced to false when referenced in the if statement). That’s why the code doesn’t work properly. The correct…
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…
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