arguments – Page 3

docker build with –build-arg with multiple arguments

May 15, 2022 by IT Nursery

According to the documentation, it’s possible to define multiple args for the flag –build-arg, but I can’t find out how. I tried the following: docker build -t essearch/ess-elasticsearch:1.7.6 –build-arg number_of_shards=5 number_of_replicas=2 –no-cache . => This returns an error. I also tried: docker build -t essearch/ess-elasticsearch:1.7.6 –build-arg number_of_shards=5,number_of_replicas=2 –no-cache . => This sets one variable, number_of_shards, … Read more

Normal arguments vs. keyword arguments

May 15, 2022 by IT Nursery

How are “keyword arguments” different from regular arguments? Can’t all arguments be passed as name=value instead of using positional syntax? 10 Answers 10

C default arguments

May 13, 2022 by IT Nursery

Is there a way to specify default arguments to a function in C? 22 Answers 22

How do I create a Python function with optional arguments?

May 11, 2022 by IT Nursery

I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios. def some_function (self, a, b, c, d = None, e = None, f = None, g = None, h = None): #code The arguments d through h are strings which each have different meanings. It is … Read more

Print multiple arguments in Python

May 10, 2022 by IT Nursery

This is just a snippet of my code: print(“Total score for %s is %s “, name, score) But I want it to print out: “Total score for (name) is (score)” where name is a variable in a list and score is an integer. This is Python 3.3 if that helps at all. 13 Answers 13

How to add reference to a method parameter in javadoc?

May 10, 2022 by IT Nursery

Is there a way to add references to one or more of a method’s parameters from the method documentation body? Something like: /** * When {@paramref a} is null, we rely on b for the discombobulation. * * @param a this is one of the parameters * @param b another param */ void foo(String a, … Read more

TypeError: method() takes 1 positional argument but 2 were given

May 6, 2022 by IT Nursery

If I have a class… class MyClass: def method(arg): print(arg) …which I use to create an object… my_object = MyClass() …on which I call method(“foo”) like so… >>> my_object.method(“foo”) Traceback (most recent call last): File “<stdin>”, line 1, in <module> TypeError: method() takes exactly 1 positional argument (2 given) …why does Python tell me I … Read more

How can I convert the “arguments” object to an array in JavaScript?

May 5, 2022 by IT Nursery

Want to improve this post? Provide detailed answers to this question, including citations and an explanation of why your answer is correct. Answers without enough detail may be edited or deleted. The arguments object in JavaScript is an odd wart—it acts just like an array in most situations, but it’s not actually an array object. … Read more

How do I pass a unique_ptr argument to a constructor or a function?

May 5, 2022 by IT Nursery

I’m new to move semantics in C++11 and I don’t know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself: #include <memory> class Base { public: typedef unique_ptr<Base> UPtr; Base(){} Base(Base::UPtr n):next(std::move(n)){} virtual ~Base(){} void setNext(Base::UPtr n) { next = std::move(n); } protected : Base::UPtr next; }; Is … Read more

JavaScript variable number of arguments to function

April 29, 2022 by IT Nursery

Is there a way to allow “unlimited” vars for a function in JavaScript? Example: load(var1, var2, var3, var4, var5, etc…) load(var1) 12 s 12 In (most) recent browsers, you can accept variable number of arguments with this syntax: function my_log(…args) { // args is an Array console.log(args); // You can pass this array as parameters … Read more