You’re not updating the value of b inside the loop, so its value is always 6. You need to use an assignment operator to actually set a new value. So, use b = b + 3; or b += 3; instead. 1 solved Why is this while loop an infinite loop? High school introduction to … Read more
Introduction If you are looking for a way to time your JavaScript code, you have come to the right place. In this article, we will discuss the various methods available to time your JavaScript code. We will discuss the pros and cons of each method and provide examples of how to use them. We will … Read more
Introduction CQL (Cassandra Query Language) is a powerful query language used to interact with Apache Cassandra databases. One of the most common questions asked about CQL is whether list values are limited to 65535 bytes. This article will provide an answer to this question and explain why this limit exists. It will also discuss the … Read more
As others have mentioned in the comments, you should not be using insert in this case, you should be using push_back vectorB.push_back(*it); You would typically use insert if there is a specific position that you want to insert the new element. If you are not interested in adding the element to a specific position, then … Read more
NOTE: I am assuming that we do not have use every color. If we do, additional checks can easily be applied. Here is some code that can solve your problem (I think)… It uses a brute force / backtracking algo. Here is the output for 3 colors, and 2 by 3 grid. It prints every … Read more
Introduction In ES6, the concept of truthiness is an important concept to understand. It is a concept that determines whether a value is considered true or false. In this article, we will discuss whether 0 is considered true in ES6. We will look at the different ways that 0 can be evaluated and how it … Read more
Introduction Creating a unique identifier for an object is an important task for many applications. It is important to ensure that the identifier is not random, as this can lead to confusion and errors. In this article, we will discuss how to create a unique identifier for an object that is not random. We will … Read more
Introduction The GetPixel() method is a Windows Graphics Device Interface (GDI) function that is used to retrieve the color of a pixel from a device context. When the GetPixel() method is used to retrieve the color of a white pixel, it will return a value of 0x00FFFFFF. This value is a hexadecimal representation of the … Read more
Introduction Invalid syntax is a common error that occurs when a programming language is not written correctly. It is usually caused by a missing or incorrect character, such as a missing semicolon or a misplaced quotation mark. When this error occurs, the compiler or interpreter will usually highlight the area where the error occurred, making … Read more
Here is semi-working and working code. Semi-working $ cat x1.pl | so #!/usr/bin/env perl use strict; use warnings; my $a = “$192.168.1.1”; print “$a\n”; $a =~ s/\$//; print “$a\n”; $ perl x1.pl | so Use of uninitialized value $192 in concatenation (.) or string at x1.pl line 5. .168.1.1 .168.1.1 $ Working $ cat x2.pl … Read more
Introduction When it comes to programming, it can be tempting to think that you can just copy and paste a method from one program to another and expect it to work. Unfortunately, this is not the case. There are a variety of reasons why you can’t just paste a method to make it work, and … Read more
Corrected (?): def parse(data): print(data) def get_set(json_url): url = json_url response = urllib.urlopen(url) data = json.loads(response.read()) s_code=”0″ print data s_code = data[“statusCode”] print s_code seconds_waiting = 10 if s_code == 200: url = json_url response = urllib.urlopen(url) data = json.loads(response.read()) parse(data) elif s_code != 200: print “waiting ” + str(seconds_waiting) + ” second(s)…” time.sleep(seconds_waiting) get_set(json_url) … Read more
Introduction This article provides a solution to the problem of extracting coordinates from a string. It explains the process of using regular expressions to parse the string and extract the coordinates. It also provides an example of how to use the regular expression to extract the coordinates from a given string. Finally, it provides a … Read more
The return keyword is an important part of any function, whether it is a main function or a user-defined function. It is used to return a value from a function to the calling program. The return keyword is used to indicate the end of a function and to return a value to the calling program. … Read more
This question is related to an error regarding the use of std::istream and int x. This type of error can be caused by a variety of issues, such as incorrect syntax, incorrect data types, or incorrect usage of the std::istream library. In this post, we will discuss the possible causes of this error and how … Read more