Null
Nerissa Reveron
As it seems switches are NULL if uninitialised.
My comparison, like: blah.state === null did not yield the proper result.
Is it then safe to day that switches are string items with two states called ONOFF?
Is there a way that I could loop through all my items and check, whether they are uninitialised?
E.g. on the console with something like smarthome:status * === UNDEF
Or loop through all contacts and set them to closed
?
Is there a way to use one test to get them all? E.g. UNDEF being uninitialised and NULL and null?
Nullability issues with generic types being used for Java interoperation. For example, a piece of Java code might add null into a Kotlin MutableList, therefore requiring a MutableList for working with it.
I moved the map files to another folder, after that this error appeared. I have no idea what might be causing it. As you can see in the screenshot, all settings are set, why GameSession is null - I have no idea.
A former coworker of mine was responding to customer support tickets one day. He was gathering information about a customer issue in order to figure out what was wrong. At some point during this process, his boss intervened and corrected the way he was responding to the support tickets. As a result of his struggles, at the next team meeting my coworker suggested we clarify our process for dealing with support tickets and customer issues. The response he was given, by the very boss who had intervened and corrected his behavior, was: "We don't want to introduce any unnecessary process."
I remember sitting in this meeting, watching his face fall, thinking that there probably couldn't be a worse response from a manager. His boss had, in one fell swoop, invalidated his experience by not acknowledging the problem and implied that he was trying to introduce "unnecessary process," which doesn't sound like a good thing. My coworker had encountered a genuine issue with our process for responding to support tickets and he wanted to improve it for the entire team. Instead of his input being welcomed, he was rebuked.
Our fear of "unnecessary process" has created workplaces with something worse than bad process: no process. I call these types of processes "null processes," and they are rampant at startups and technology companies. In this article, I explain the concept of the null process, how it can hurt companies, how it can hurt diversity, and ideas for putting in place good process.
The biggest danger with a null process is that it creates an environment of unspoken expectations. Most of the time, people have expectations about how a task should be completed. In the introductory story, when my coworker was responding to support tickets it became clear that there was an expected way that he should complete the task. His boss intervened to correct what he was doing, yet my coworker and the rest of the team was unaware that there was an expected way to respond to support tickets.
Managing with unspoken expectations is dangerous. How can employees perform to a manager's standards if they don't know what's expected of them? Saying these expectations out loud in a one-off situation means that some people might know what's expected and others don't. How can you compare the job performance between employees who know the unspoken processes and those who don't? Additionally, the more time an employee spends getting their boss to tell them all the unspoken processes for their job, the more likely they are to be successful at the company. But that seems like an inefficient use of the employee and the manager's time.
A lot of companies end up with null process because they're afraid of bad process. There is this myth that having no process is liberating and that it frees people up to solve problems the best way possible. While that might be true on a very small, flexible, early-stage team, as a company grows the null process quickly becomes a hindrance. Undocumented process is extremely difficult to teach to new employees, making onboarding and team growth more expensive. The null process can easily transform into unspoken expectations that things are done a certain way, even though the company has not documented the implicitly understood process for completing a task. As Jo Freeman says in her famous essay The Tyranny of Structurelessness, "For everyone to have the opportunity to be involved in a given group and to participate in its activities the structure must be explicit, not implicit" [2]. By relying on implicit processes, companies are creating environments with unspoken expectations that can make it difficult for employees to succeed at their jobs.
Process is a necessary and crucial part of any organization. Our fear of bad and unnecessary process has led many companies to reject process altogether. But null processes are just a subcategory of bad processes, and they can lead to problems with communication, unspoken expectations, and discrimination. Instead, companies should aim for good process. Good process is light-weight, responsive, and serves to inform people of the minimum number of steps needed to do a task correctly. The pursuit of good process can be creative, flexible, and iterative, and employees should feel empowered to change and improve processes they deal with every day. The null process is a dangerous trap for organizations, and companies should work to collaboratively pursue good process and create a better work environment for employees and diversity.
- What is this infamous null pointer, anyway?
- Freeman, Jo. The Tyranny of Structurelessness. JoFreeman.com.
- Lomas, Natasha. Twitter Latest To Face Sex Discrimination Lawsuit. Techcrunch, 2015.
- Gawande, Atul (2009-12-15). The Checklist Manifesto: How to Get Things Right (p. 36). Henry Holt and Co.. Kindle Edition.
- Power, Brad. Understanding Fear of Process Improvement. Hbr.com (Harvard Business Review), 2012.
With sound null safety, all variables require a value.This means Dart considers all variables non-nullable.You can assign values of the declared type only, like int i=42.You can never assign a value of null to default variable types.To specify that a variable type can have a null value, add a ? afterthe type annotation: int? i.These specific types can contain either a null ora value of the defined type.
Sound null safety changes potential runtime errorsinto edit-time analysis errors.With null safety, the Dart analyzer and compilersflag if a non-nullable variable has either:
It's common for data to be suppressed when there isn't a sufficient sample size. The suppression takes place to protect information about the respondents in those areas and to limit unreliable statistics. In many cases there are limited numbers of people who have a disability or are within the age group of interest at the block group level. The counties have a larger population so you likely won't get null values at that spatial resolution.
Pretty much every name offers some possibility for being turned into a schoolyard taunt. But even though I'm an adult who left the schoolyard decades ago, my name still inspires giggles among the technologically minded. My last name is "Null," and it comes preloaded with entertainment value. If you want to be cheeky, you will probably start with "Null and void." If you're a WIRED reader, you might move on to "Null set." Down-the-rabbit-hole geeks prefer the classic "dev/null."
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