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How to print struct variables in console?
...nique:
type Response2 struct {
Page int `json:"page"`
Fruits []string `json:"fruits"`
}
res2D := &Response2{
Page: 1,
Fruits: []string{"apple", "peach", "pear"}}
res2B, _ := json.Marshal(res2D)
fmt.Println(string(res2B))
That would print:
{"page":1,"fruits":["apple","pe...
Find XOR of all numbers in a given range
... ^ 3 ^ 4 .. ^ b
b is greater than a, so just by safely dropping in a few extra brackets (which we can because it's associative), we can also say this:
f(b) = ( 0 ^ 1 ^ 2 ^ 3 ^ 4 .. ^ (a-1) ) ^ (a ^ a+1 ^ a+2 .. ^ b)
Which simplifies to:
f(b) = f(a-1) ^ (a ^ a+1 ^ a+2 .. ^ b)
f(b) = f(a-...
How do you create a random string that's suitable for a session ID in PostgreSQL?
I'd like to make a random string for use in session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
...
Converting JSONarray to ArrayList
I am downloading a JSON string and converting it to JSONArray. Im putting it into a listview and need to be able to delete from that listview later, and since JSONArray has no .remove method (Thanks Obama), I am trying to convert it to an arraylist.
...
Performing Inserts and Updates with Dapper
...using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive...
How to parse JSON in Scala using standard Scala classes?
...pply(a:Any):Option[T] = Some(a.asInstanceOf[T]) }
object M extends CC[Map[String, Any]]
object L extends CC[List[Any]]
object S extends CC[String]
object D extends CC[Double]
object B extends CC[Boolean]
val jsonString =
"""
{
"languages": [{
"name": "English",
...
Manually raising (throwing) an exception in Python
...older versions of Python (2.4 and lower), you may still see people raising strings:
raise 'message' # really really wrong. don't do this.
In all modern versions, this will actually raise a TypeError, because you're not raising a BaseException type. If you're not checking for the right exception a...
How are Python's Built In Dictionaries Implemented?
... ...
For a 64 bit machine, this could save up to 16 bytes per key per extra dictionary.
Shared Keys for Custom Objects & Alternatives
These shared-key dicts are intended to be used for custom objects' __dict__. To get this behavior, I believe you need to finish populating your __dict__ be...
Keystore type: which one to use?
... have covered JCEKS and PKCS12 today. For PKCS11, it involves hardware and extra configuration, need more time to compose it. pixelstech.net/article/… and pixelstech.net/article/…
– PixelsTech
Jan 5 '15 at 7:24
...
Android- create JSON Array and JSON Object
...entsObj = new JSONObject();
studentsObj.put("Students", jsonArray);
String jsonStr = studentsObj.toString();
System.out.println("jsonString: "+jsonStr);
share
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