What is the difference between NULL and character(0) | integer(0) etc? > identical(NULL, character(0))
I\'m attempting to load content from another page using jQuery .post(), to parse the returned html to pull out only the pieces that I want.
The following little test throws an NPE: public class Test { public static voidmain(String[] args) { String a = \"a\";
Is there any way to get a type of the null value开发者_StackOverflow? This does not work: let a: string = null
I have this php statement in my login script... else if ($_POST[\'email\'] === $details[\'email\'] &&
I\'m seeing a strange behavior in an EF query adn I\'m wondering why 开发者_运维知识库it is happening.
I\'m new to db design and have a couple of problems. I have a job title field in 3 data tables and need to use a validation table to limit the range of values. My question: Do I need to create a sepa
I could of course solve this downstream in R, but I think that would be messier compared to 开发者_运维问答just get rjson to do it for me somehow. Can it be done?Two ideas:
So basically I\'m trying to make a Windows Form Application to calculate the average of 4 test grades. However, in some classes, I may only have 3 tests. Without a value in all four test textboxes the
I was wondering what\'s the difference the two cases below, and which one is recommend开发者_C百科ed?
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