function

问题 I want to write code that adds the doNotInclude method to the Array.prototype object. The purpose of my code is: does not include the index values from the array passed to doNotInclude . Code below: Array.prototype.doNotInclude = function (arr) { //if (!Array.isArray(arr)) arr = [arr]; return this.filter((val, i) => { if (!arr.includes(i)) return val; }); }; ['zero', 'one', 'two', 'three', 'four', 'five', 'six'].doNotInclude([0, 1]) My code executes successfully and returns: [ 'two', 'three',

问题 Is it possible store a few functions in an array by reference or by anonymous function? For example: $array = [fun1, function(){ /*do something*/ }, fun3]; where fun1 and fun3 are defined as function fun1(){/*do something*/} 回答1: As long as your PHP version is >= 5.3 you'll be able to harness anonymous functions and regular functions in your array: function yourFunction($string){ echo $string . " : by reference"; }; $array = array( 'a' => function($string){ echo $string; }, 'b' =>

问题 This question already has answers here : How to return matrix (2D array) from function? (C) (3 answers) Closed 4 years ago . Maybe my question is easy but I am newby in C. I create a function which read some data from a file and then pass them to a another function which parse them given number of rows and columns and create a 2D array. I want to return this array in order to perform some operantions in its rows. How can I return a 2D array in C Can someone give me an example or what may I

问题 I have a function that takes 3 arguments. a vector of other functions, a void*, and an arbitrary list of arguments. The function is designed to pass in it's void* and arbitrary list of arguments to each function in the list, which the functions will handle themselves. here is an example of what I want: typedef void (*fptr)(const void* userdata, ...); void execute_all(vector<fptr> funcs, void* userdata, ...){ for (int i = 0;i<funcs.size();i++){ fptr func = funcs[i]; //execute func with

问题 I have a function that takes 3 arguments. a vector of other functions, a void*, and an arbitrary list of arguments. The function is designed to pass in it's void* and arbitrary list of arguments to each function in the list, which the functions will handle themselves. here is an example of what I want: typedef void (*fptr)(const void* userdata, ...); void execute_all(vector<fptr> funcs, void* userdata, ...){ for (int i = 0;i<funcs.size();i++){ fptr func = funcs[i]; //execute func with

问题 I am trying to code a function where it gives me the indexes of where either list_2 or list_3 crosses list_ . So it would give me the points of intersection if there are any in numpy code. I want to get the crosses in order, so the list of indexes have to be formatted so that it would give me a cross in order of list_2 cross, list_3 cross , list_2 cross or list_3 cross, list_2 cross , list_3 cross etc. So if a cross has happened it has to wait for the other array values to cross the list

问题 I am trying to code a function where it gives me the indexes of where either list_2 or list_3 crosses list_ . So it would give me the points of intersection if there are any in numpy code. I want to get the crosses in order, so the list of indexes have to be formatted so that it would give me a cross in order of list_2 cross, list_3 cross , list_2 cross or list_3 cross, list_2 cross , list_3 cross etc. So if a cross has happened it has to wait for the other array values to cross the list

问题 I am trying to code a function where it gives me the indexes of where either list_2 or list_3 crosses list_ . So it would give me the points of intersection if there are any in numpy code. I want to get the crosses in order, so the list of indexes have to be formatted so that it would give me a cross in order of list_2 cross, list_3 cross , list_2 cross or list_3 cross, list_2 cross , list_3 cross etc. So if a cross has happened it has to wait for the other array values to cross the list

问题 This question already has answers here : What is the Python equivalent of static variables inside a function? (26 answers) Closed last year . Is there a way that a function can remember its previous output and use that value during the next call to the function? For instance, assume there is a function, runningTotal with a single argument x that returns x on the first call to runningTotal but x + prevOutput for every call after that. Is there a way to write such a function in python? I am

问题 This question already has answers here : What is the Python equivalent of static variables inside a function? (26 answers) Closed last year . Is there a way that a function can remember its previous output and use that value during the next call to the function? For instance, assume there is a function, runningTotal with a single argument x that returns x on the first call to runningTotal but x + prevOutput for every call after that. Is there a way to write such a function in python? I am