function

问题 If I have a script like this: import sys def square(x): return x*x def cube(x): return x**3 How can I return a list of all the functions defined locally in the program ['square', 'cube'] , and not the ones imported. They are included when I try dir() but so are all the variables and other imported modules. I don't know what to put into dir to refer to the locally executing file. 回答1: l = [] for key, value in locals().items(): if callable(value) and value.__module__ == __name__: l.append(key)

问题 How do I define a function so that I can call it from command-line mode without :call in front of it? Right now, I have to do this: :call TrimWhitespace() I want to define it so that I can do this: :TrimWhitespace 回答1: This won't be a function, you should create a command instead. Check the documentation for commands ( :help user-commands in Vim). The simplest case is of a command to call a function: command! TrimWhitespace call TrimWhitespace() 来源： https://stackoverflow.com/questions/7434142

问题 I know there are a few similar questions already on SO (1, 2, 3) but unfortunately my limited knowledge of JS doesn't allow me to extrapolate the scenarios to my personal use case, hence this question. I have the following piece of code which allows me to dynamically attach to and call from an object some functions, which works fine (available on JsFiddle): JavaScript : $.extend(true, window, { "MyPlugin": { "dynamicFunction": dummy_function } }); function dummy_function() { } function real

问题 I know there are a few similar questions already on SO (1, 2, 3) but unfortunately my limited knowledge of JS doesn't allow me to extrapolate the scenarios to my personal use case, hence this question. I have the following piece of code which allows me to dynamically attach to and call from an object some functions, which works fine (available on JsFiddle): JavaScript : $.extend(true, window, { "MyPlugin": { "dynamicFunction": dummy_function } }); function dummy_function() { } function real

问题 I have just started learning how to code in Python and would appreciate if anyone could give me a brief explanation/hint on how to convert raw code into function(s). Example machine learning code: # create model model = Sequential() model.add(Dense(neurons, input_dim=8, kernel_initializer='uniform', activation='linear', kernel_constraint=maxnorm(4))) model.add(Dropout(0.2)) model.add(Dense(1, kernel_initializer='uniform', activation='sigmoid')) # Compile model model.compile(loss='binary

问题 How can I make this pseudo code to work in Postgresql: create or replace function getf(arg character varying(255)) returns int as $$ if arg = 'a' then return 1; else return 2; $$ language sql; Based on argument I need to return some values and there is no other table I need to query. Just need to build a logic inside function. Tried to replace if with when clause, but could not figure out how to do it. Thanks! 回答1: create or replace function getf(arg character varying(255)) returns int as $$

问题 The result that's logged to the console ( answer ) is the correct one, but it's coming out of the function as undefined. What is going on? let sorted = []; function reset(){ sorted = []; } function sort(list) { let least = list[0]; for (let i = 0; i < list.length; i++){ if (list[i] < least ){ least = list[i]; } } sorted.push(least); list.splice(list.indexOf(least),1); if (list[0] !== undefined){ sort(list) } else { let answer = sorted; reset(); console.log(answer); return answer; } } let

问题 The result that's logged to the console ( answer ) is the correct one, but it's coming out of the function as undefined. What is going on? let sorted = []; function reset(){ sorted = []; } function sort(list) { let least = list[0]; for (let i = 0; i < list.length; i++){ if (list[i] < least ){ least = list[i]; } } sorted.push(least); list.splice(list.indexOf(least),1); if (list[0] !== undefined){ sort(list) } else { let answer = sorted; reset(); console.log(answer); return answer; } } let

问题 Here's a little piece of code which converts every function to its memoization version. def memoize(f): # Memoize a given function f def memf(*x): if x not in memf.cache: memf.cache[x] = f(*x) return memf.cache[x] memf.cache = {} return memf For instance, if we have a function fib as follows which returns the n th Fibonacci number: def fib(n): if n < 2: return 1 else: return fib(n-1) + fib(n-2) Now, the above function can be memoized by using fib = memoize(fib) Everything is fine up to this

问题 How can I access a variable inside a function which is inside a function in javascript ? var a; var surveyObjects = Parse.Object.extend(surveyObject); var query= new Parse.Query(surveyObjects); query.count({ success: function(count){a = count;}, error: function(error){} }); alert("count of function "+a); a is showing undefined value. I need to use the value of a outside. 回答1: You can do this by using implicit global variable behaviour. function one(){ function two(){ a=10; } two(); } one();