Tag: Fundamentals

Benchmark of Querying Special Dictionary Containers

Result

Querying 1,000,000 times with 1,000,000 elements:

Container	Mean(ms)	Min(ms)	Max(ms)	Range	AllocatedBytes	Operations	Ratio of Mean(ms)
Dictionary	34.72	30.65	36.33	16%	170	656	1.00x
ConcurrentDictionary	129.94	128.51	131.43	2%	542	60	3.74x
ConditionalWeakTable	168.45	150.94	184.17	20%	542	236	4.85x

Haoyu JiaOriginalAbout 1 min

CSharp Initialization Sequence of Members

Initialization Order for a Single Instance

Consider a part of CSharp code as follows, and try to guess what is the value of instance.Number:


var instance = new SampleClass()
{
    Number = 3;
};

Console.WriteLine(instance.Number); // What's the value of property 'Number'?

class SampleClass
{
    public int Number {get; set;} = 1;

    public SampleClass()
    {
        Number = 2; 
    }
}

Haoyu JiaOriginalAbout 2 min