Assume myObj is null.Is it safe to write this开发者_高级运维? if(myObj != null && myObj.SomeString != null)
I read the following Stack Overflow questions, and I understand the differences between bitwise and logical.
I am using %in% to see if the vector contain what I need, like below: > c(1,2)%in%1:4 [1] TRUE TRUE > c(1,5)%in%1:4
I don\'t understand how &&, ||, and ! work... both with 开发者_Go百科bools and other data types. How do you use them?All values in JavaScript are either “truthy” or “falsy”.
Why开发者_开发问答 is there no logical xor in JavaScript?JavaScript traces its ancestry back to C, and C does not have a logical XOR operator. Mainly because it\'s not useful. Bitwise XOR is extremely
Is there any interpretation of this expression in the decimal system? In other words, is it an efficient implementation of calculation using the lo开发者_开发问答gical operation in place of arithmetic
In javascript, if we have some code such as var a = \"one\"; var b = q || a; alert (b); The logical OR operator will assign a\'s value to b, and the alert will be \"one.\"
I\'m pretty sure its probably ( or ) that is causing it maybe one too many of them. $filechk1 = \"/temp/files/\" . $data[0] . \".doc\";
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari
I can\'t seem to get this one part right. I was given a input file with a bunch of names, some of which I need to skip, with extra information on each one. I was trying use ANDs and ORs to skip over t
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