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Exactly. I think Mr Jörgen is confused.

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

Really? Java converts a string variable with the contents "null" into a null object pointer? Really? I think maybe you mean JavaScript, but even then that doesn't do what you suggest (convert a string containing "null" to a null pointer).

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

modified 10-Nov-15 14:37pm.

I can see that I was quite unclear, or even erroneous, in my answer to Eddy.

What I meant to convey was merely the existence of the literal 'null'. This is why I asked "But which other languages does the same".
And I know this isn't converted to a null object pointer, 'null' in Java is a type[^] not a pointer.
This is the reason I responded to Eddy that it is an abstraction.

I'm sorry to have ticked you off so badly.

Wrong is evil and must be defeated. - Jeff Ello

Sorry if I gave the impression that I was "ticked off". I was just surprised that someone would seem to "believe" what you wrote.

Quote:
There is also a special null type, the type of the expression null (§3.10.7, §15.8.1), which has no name.

Doesn't that say that 'null' is an expression whose type is also null? How else can we compare a java reference value (an expression) to null unless null is also an expression (i.e value)?

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

Interesting choice of words, isn't it.
Especially when you read two rows below.

Quote:
The null reference is the only possible value of an expression of null type.

But since the null type is mentioned together with reference types and primitive types I don't feel there is any doubts about the intensions.

Wrong is evil and must be defeated. - Jeff Ello

Sure, the obvious intention that "null" is both a value expression and a type. Although you can never access the null type only the null value expression.

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

My thoughts exactly!
It takes A LOT OF WORK to translate "null" into null... Unsure | :~

At least in the languages I know.

Unless...

JavaScript

<script>
var name = 'null';
if (name == null) {
    alert("That's a lovely name " + name + '!');
} else {
    alert('Please insert a name!');
}
</script>

Yep, JavaScript as always Dead | X|

And it's only the one language that's used for every website everywhere.

Just "if (name)" would've been fine though...

JavaScript... Y U DO DIS!? Confused | :confused:

Visit my blog at Sander's bits - Writing the code you need.
Or read my articles at my CodeProject profile.

Simplicity is prerequisite for reliability.
— Edsger W. Dijkstra

Regards,
Sander

~~Leeson~~ Lesson* learned: never use a coffee-based language. Sniff | :^)

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

I wonder how this is handled in Typescript?

Wrong is evil and must be defeated. - Jeff Ello

The only way to handle this is simply "if (name)"...
Even "if (name === null)" evaluates to true if name is "null"! Unsure | :~

And it gets worse "name === undefined" is also true for name is "null"... That's not even close!
Well, undefined === null, but that's just bullcrap.
As is JavaScript Dead | X|

Visit my blog at Sander's bits - Writing the code you need.
Or read my articles at my CodeProject profile.

Simplicity is prerequisite for reliability.
— Edsger W. Dijkstra

Regards,
Sander

Which flavour of javascript are you using? I've tried in Firefox, Chrome, IE11 and Edge, and I can't get it to think that "null" is equal to null or undefined at all. Confused | :confused:

Try this test script: https://jsfiddle.net/bfg9cxg2/[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

I just realized I've switched == and !=...
If stupidity hurt I'd be in agonizing pain right now! Laugh | :laugh:

Visit my blog at Sander's bits - Writing the code you need.
Or read my articles at my CodeProject profile.

Simplicity is prerequisite for reliability.
— Edsger W. Dijkstra

Regards,
Sander

I modified it to test for "undefined == null" and "undefined === null" and only the "==" (double eq) succeeded in being "equal".

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

But that's not the point. The test was whether the string value "null" would compare equal to null or undefined, which it doesn't.

JavaScript

"null" === null // false
"null" == null // false
"null" === undefined // false
"null" == undefined // false

// Neither of these tests would affect "Mr Null":
null === undefined // false
null == undefined // true

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Yes, I know, and I understood that already. The claim was made that "undefined == null" and "undefined === null" are equivalent and "fail" but they don't. Both are valid well-defined statements and comparisons.

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

Running that script in Chrome alerts "Please insert a name".

Even JavaScript isn't that bad. Close, but not quite that bad.

"If you don't fail at least 90 percent of the time, you're not aiming high enough."
Alan Kay.

Please see my earlier reaction[^]... Laugh | :laugh:

Visit my blog at Sander's bits - Writing the code you need.
Or read my articles at my CodeProject profile.

Simplicity is prerequisite for reliability.
— Edsger W. Dijkstra

Regards,
Sander

Yeah, that's what I was thinking. What bassakward software is written to see a "null" STRING as a null object pointer. WTF?

Very poorly written software.

And I'm wondering just how real this is?

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

Methinks it isn't.

"Null" != "null"; and does it happen to "nulls" also? Come on, a string literal is exactly that, an array of byte in a specific encoding, and it does not magically become a null-pointer.

Sound like something only an idiot would parse in each user-input. Then again, the heir to the throne of idiots may have decided that a NVARCHAR text of 'Null' is actually null. I doubt we will find out.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Eddy Vluggen wrote:
Methinks it isn't.

Agreed.

Eddy Vluggen wrote:
something only an idiot would parse

Indeed.

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

For websites and stuff to fail like that is really worrying. Shouldn't those just be strings?

What do you get when you cross a joke with a rhetorical question?

The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.

Do questions with multiple question marks annoy you???

There's probably some code somewhere in the frontend/backend that's comparing the string to "null" because the developers doughheads decided that was the way to represent (no data) for certain db fields instead of using the more reasonable dbnull field concept.

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

TheGreatAndPowerfulOz wrote:
developers doughheads

LOL

What do you get when you cross a joke with a rhetorical question?

The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.

Do questions with multiple question marks annoy you???

Or possibly the management decided that.

What do you get when you cross a joke with a rhetorical question?

The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.

Do questions with multiple question marks annoy you???

yah, it does sounds like a manager sort of thing to do...

Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun