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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...ut React's diff algorithm here: http://calendar.perfplanet.com/2013/diff/. From what I understand, what makes React fast is:
Batched DOM read/write operations.
Efficient update of sub-tree only.
Compared to dirty-check, the key differences IMO are:
Model dirty-checking: React component is expl...
Unit test, NUnit or Visual studio?
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From my current perspective (after 8 months of development with about 10 developers on average) I would advise against using MSTest for the following reasons
The framework in itself is quite
slow. I don't mean the test code...
Multiple left-hand assignment with JavaScript
... this kind of thing ahead of time, you could still break up the definition from the assignment. So: var v1, v2, v3; Then later on: v1 = v2 = v3 = 6; They'll still be in local scope. Since David mentioned alerts, this would work as expected (if pre-var'd): alert(v1 = v2 = v3 = 6);
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Use Font Awesome icon as CSS content
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If you have access to SCSS files from font-awesome, you can use this simple solution:
.a:after {
// Import mixin from font-awesome/scss/mixins.scss
@include fa-icon();
// Use icon variable from font-awesome/scss/variables.scss
content: $fa-...
Open multiple Eclipse workspaces on the Mac
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For the mac, you can make an alias to do this from any directory in the terminal as well: alias eclipse='open -n /Applications/eclipse/Eclipse.app'. The -n is for "Open a new instance of the application(s) even if one is already running."
– Jeffrey ...
Maven-like dependency management for C++? [closed]
...rked very nicely. However, other binary dependencies (i.e. the ones coming from my subprojects) could not be managed easily. Am I missing something?
– weberste
Jul 20 '09 at 13:06
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A reference to the dll could not be added
...use TLBMP? Normally in VS2015 if you just add the reference to the COM DLL from the references window it takes care of all this for you.
– UuDdLrLrSs
Jun 28 '17 at 18:56
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What is Type-safe?
...n be a bit of both: some statically typed languages allow you to cast data from one type to another, and the validity of casts must be checked at runtime (imagine that you're trying to cast an Object to a Consumer - the compiler has no way of knowing whether it's acceptable or not).
Type-safety doe...
Core Data: Quickest way to delete all instances of an entity
I'm using Core Data to locally persist results from a Web Services call. The web service returns the full object model for, let's say, "Cars" - could be about 2000 of them (and I can't make the Web Service return anything less than 1 or ALL cars.
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What's the difference between a word and byte?
...t to set/clear single bits, you first need to fetch the corresponding byte from memory, mess with the bits and then write the byte back to memory.
The word by contrast is biggest chunk of bits with which a processor can do processing (like addition and subtraction) at a time. That definition is a b...