Calling a python function from bash script
python -c’import themodule; themodule.thefunction(“boo!”)’
function
Fish shell: Check if argument is provided for function
count is the right way to do this. For the common case of checking whether there are any arguments, you can use its exit status: function fcd if count $argv > /dev/null open $argv else open $PWD end end To answer your second question, test -d $argv returns true if $argv is empty, because POSIX … Read more
How to call a function within $(document).ready from outside it
Define the function on the window object to make it global from within another function scope: $(document).ready(function(){ window.lol = function(){ alert(‘lol’); } });
C++ Member Functions vs Free Functions
The Interface Principle by Herb Sutter For a class X, all functions, including free functions, that both (a) “mention” X, and (b) are “supplied with” X are logically part of X, because they form part of the interface of X. For in depth discussion read Namespaces and the Interface Principle by Herb Sutter. EDIT Actually, … Read more
Is it legal to use previous function parameter to declare new one?
This is fine. The ISO C++11 Standard even gives your situation as an example. First the parameter is in scope: 3.3.3 Block scope [ basic.scope.local ] 2 The potential scope of a function parameter name (including one appearing in a lambda-declarator) or of a function-local predefined variable in a function definition (8.4) begins at its … Read more
Why doesn’t console.log work when passed as a parameter to forEach?
It’s worth pointing out that there is a difference in behavior in the implementation of console.log. Under node v0.10.19 you do not get an error; you simply see this: > [1,2,3,4,5].forEach(console.log); 1 0 [ 1, 2, 3, 4, 5 ] 2 1 [ 1, 2, 3, 4, 5 ] 3 2 [ 1, 2, 3, … Read more
Why doesn’t an import in an exec in a function work?
How about this: def test(): exec (code, globals()) f()
What is this strange function definition syntax in C? [duplicate]
Those are old K&R style function parameter declarations, declaring the types of the parameters separately: int func(a, b, c) int a; int b; int c; { return a + b + c; } This is the same as the more modern way to declare function parameters: int func(int a, int b, int c) { return … Read more
What is a good way to automatically bind JS class methods?
Use fat arrow function in ES6 (generally called as arrow function) anotherOne = ()=> { … } Call like this onClick={this.anotherOne}; no need to bind in constuctor From the ECMA spec Any reference to arguments, super, this, or new.target within an ArrowFunction must resolve to a binding in a lexically enclosing environment. Typically this will … Read more