If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me … Read more
There are multiple answers/techniques to the below question: How to set default values to golang structs? How to initialize structs in golang I have a couple of answers but further discussion is required. 10 Answers 10
It’s quite annoying to test all my strings for null before I can safely apply methods like ToUpper(), StartWith() etc… If the default value of string were the empty string, I would not have to test, and I would feel it to be more consistent with the other value types like int or double for … Read more
is there “elegant” way to give specific property a default value ? Maybe by DataAnnotations, something like : [DefaultValue(“true”)] public bool Active { get; set; } Thank you. 17 Answers 17
I would like to have a optional argument that will default to a value if only the flag is present with no value specified, but store a user-specified value instead of the default if the user specifies a value. Is there already an action available for this? An example: python script.py –example # args.example would … Read more
I know that instantiated arrays of value types in C# are automatically populated with the default value of the type (e.g. false for bool, 0 for int, etc.). Is there a way to auto-populate an array with a seed value that’s not the default? Either on creation or a built-in method afterwards (like Java’s Arrays.fill())? … Read more
I want to change default text on button that is “Choose File” when we use input=”file”. How can I do this? Also as you can see in image button is on left side of text. How can I put it on right side of text? 21 Answers 21
What are the default values of boolean (primitive) and Boolean (primitive wrapper) in Java? 8 Answers 8
C++ Notes: Array Initialization has a nice list over initialization of arrays. I have a int array[100] = {-1}; expecting it to be full with -1’s but its not, only first value is and the rest are 0’s mixed with random values. The code int array[100] = {0}; works just fine and sets each element … Read more
I’m trying to convert a longish hollow “data” class into a named tuple. My class currently looks like this: class Node(object): def __init__(self, val, left=None, right=None): self.val = val self.left = left self.right = right After conversion to namedtuple it looks like: from collections import namedtuple Node = namedtuple(‘Node’, ‘val left right’) But there is … Read more
