One reason it looks like a lot of code is that it is very repetitive. Use variables to store the parts that are repeated, and that will help with the readability: private List<Foo> parseResponse(Response<ByteString> response) { Status status = response.status(); int code = status.code(); boolean payloadAbsent = !response.payload().isPresent(); if (code != Status.OK.code() || payloadAbsent) { … Read more
That’s a new one for me. If I read that correctly the <boolean value expression> grammar defines three predicates solely for use with the boolean datatype IS TRUE, IS FALSE, IS UNKNOWN. These differ from their equality counterparts in that they only evaluate to True or False. Never to Unknown. i.e. UNKNOWN = TRUE would … Read more
Yes, you’re exactly right. Here you have two equality checks, which have the same operator precedence. First one evaluates first, then its result applies to the next equality check. 1===1===1is the same as (1===1)===1 which is true===1 which is false, because here you check by values AND their types. 1==1==1 will result in true, because … Read more
I may be missing something very fundamental, but I’ll give it a go: result = ( v1 == v2 );
There is a jquery plugin to do this, called QueryBuilder, which do this in an interesting way : http://mistic100.github.io/jQuery-QueryBuilder/
Apart from “readability”, no. They’re functionally equivalent. (“Readability” is in quotes because I hate == false and find ! much more readable. But others don’t.)
Boolean implication A implies B simply means “if A is true, then B must be true”. This implies (pun intended) that if A isn’t true, then B can be anything. Thus: False implies False -> True False implies True -> True True implies False -> False True implies True -> True This can also be … Read more
Here’s another way to think about it. Consider four sets: Blue things, red things, big things, and small things. If you intersect the set of all blue things and all small things, you end up with the union of the properties — everything in the set has both the blue property and the small property. … Read more
Although Hasturkun’s solution will work, I think the idiomatic way to write this is: ifeq ($(TEST_FLAG),TRUE) ifeq ($(DEBUG_FLAG),FALSE) # Stuff endif endif