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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
... @Christoph: you are right... I failed to notice that. I find my implementation more simple to understand though :)
– Eric Bréchemier
Nov 13 '09 at 16:41
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Comparing mongoose _id and strings
...er, and guess what. I prefer your version to mine now. mind if i add it to my answer with proper attribution?
– r3wt
Apr 4 '18 at 3:40
1
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What's the difference between ES6 Map and WeakMap?
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So my understanding is Map maintains an internal array to persist its key because of that array. Garbage collector is not able to refrain the reference. In WeekMap, it doesnt have a array where keys maintained so key with no ref...
How to quickly clear a JavaScript Object?
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Well, at the risk of making things too easy...
for (var member in myObject) delete myObject[member];
...would seem to be pretty effective in cleaning the object in one line of code with a minimum of scary brackets. All members will be truly deleted instead of left as garbage.
Obviously i...
What is console.log?
...arguments as you want, and they will be replaced by spaces.
console.log( myvar, "Logged!");
console.info( myvar, "Logged!");
console.warn( myvar, "Logged!");
console.debug(myvar, "Logged!");
console.error(myvar, "Logged!");
These show up with different logos for each command.
You can also use c...
Differences between unique_ptr and shared_ptr [duplicate]
...mpile-time error. For example, this code is illegal:
unique_ptr<T> myPtr(new T); // Okay
unique_ptr<T> myOtherPtr = myPtr; // Error: Can't copy unique_ptr
However, unique_ptr can be moved using the new move semantics:
unique_ptr<T> myPtr(new T); // Okay
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Get local href value from anchor (a) tag
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In my case I had a href with a # and target.href was returning me the complete url. Target.hash did the work for me.
$(".test a").on('click', function(e) {
console.log(e.target.hash); // logs https://www.test./com/#test
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MySQL Error 1093 - Can't specify target table for update in FROM clause
I have a table story_category in my database with corrupt entries. The next query returns the corrupt entries:
16 Answers...
Moq: Invalid setup on a non-overridable member: x => x.GetByTitle(“asdf”)
... +1 Tomas, I need to inject a parameter into the ctor, hence in my case I had to mock the actual class and set the methods to virtual, because you can't inject parameters into an Interface's ctor. Is this the right approach?
– Houman
Feb 14 '11 at 10...
Concatenate a vector of strings/character
...ng for easier printing. It will also print the code line itself. It's from my list examples in R page.
Generate some lists named or unnamed:
# Define Lists
ls_num <- list(1,2,3)
ls_str <- list('1','2','3')
ls_num_str <- list(1,2,'3')
# Named Lists
ar_st_names <- c('e1','e2','e3')
ls_n...