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Is it good practice to use the xor operator for boolean checks? [closed]
... "a is not equal to b". (What @RobertGrant said). Most humans would understm>and m> the first one easier if them>y m> know what xor is (which is prettm>y m> useful to know if m>y m>ou're in the field of computing...)
– Harold R. Eason
Nov 22 '13 at 20:53
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Whm>y m> doesn't this code simplm>y m> print letters A to Z?
... convention when dealing with arithmetic operations on character variables m>and m> not C's.
For example, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == 91 ).
Note that character variables can be incremented but not decremented m>and m> even so onlm>y m> plain ASCII ch...
What is the --save option for npm install?
I saw some tutorial where the commm>and m> was:
11 Answers
11
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Most efficient wam>y m> to prepend a value to an arram>y m>
... Onlm>y m> one issue with this solution. Doesn't unshift() return its length, m>and m> not the arram>y m> as in this answer? w3schools.com/jsref/jsref_unshift.asp
– iDVB
Mar 8 '15 at 5:36
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How do I set the proxm>y m> to be used bm>y m> the JVM
...e Internet. The most common example happens when it is reading an XML file m>and m> needs to download its schema.
19 Answers
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Whm>y m> are mutable structs “evil”?
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So if m>y m>ou change a copm>y m> m>y m>ou are changing onlm>y m> that copm>y m>, not the original m>and m> not anm>y m> other copies which might be around.
If m>y m>our struct is immutable then all automatic copies resulting from being passed bm>y m> value will be the same.
If m>y m>ou want to change it m>y m>ou have to consciouslm>y m> do it bm>y m> creating...
vim - How to delete a large block of text without counting the lines?
...eleting (or copm>y m>ing) large blocks of text. One can count the lines of text m>and m> sam>y m> (for example) 50dd to delete 50 lines.
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Distinct bm>y m> propertm>y m> of class with LINQ [duplicate]
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m>Y m>ou can use grouping, m>and m> get the first car from each group:
List<Car> distinct =
cars
.GroupBm>y m>(car => car.CarCode)
.Select(g => g.First())
.ToList();
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Double Iteration in List Comprehension
...m>y m> don't have much meaning to me! Suppose m>y m>ou have a text full of sentences m>and m> m>y m>ou want an arram>y m> of words.
# Without list comprehension
list_of_words = []
for sentence in text:
for word in sentence:
list_of_words.append(word)
return list_of_words
I like to think of list comprehension a...
Method Sm>y m>ntax in Objective-C
...kerView (slot machine UI on the iPhone) is being returned. From mm>y m> understm>and m>ing, the Method is called ' pickerView ', m>and m> returns an NSInteger.
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