global-variables

Unity3D, editable global variables?

由 假如想象 提交于 2019-12-13 01:18:16
问题 As far as I know, the only possibility to use global variables is to define them as static (const in C#). Is there any way to access and change a variable from another script, while both scripts access the same variable? 回答1: It depends on the situation and your requirements. In most cases there are several ways to go. If both scripts are derived from MonoBehaviour and are active you can take non-static public members and use GameObject.Find (store it as reference if you need it quite often

R Error: cannot change value of locked binding

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-12 23:46:51
问题 Im trying to estimate the mean and standard deviation of an infinite stream of numbers. When I run my code I get an error message "cannot change value of locked binding" I did some research and gather this error is related to my use of global variables but I am unable to figure it out. Any help would be much appreciated. Thanks in advance for your help #define global variables glength <<- 0 sum <<- 0 sumSq <<- 0 xBar <<- 0 SD <<- 0 #function with global variables gF <- function() { glength <<

Objective-C: When to know that you are abusing the SIngleton method of Global Variables

由 99封情书 提交于 2019-12-12 21:26:21
问题 So my clients iphone app has balloned from 5 or so classes to over 25 in the last few weeks. With such a large (for the iphone anyway) class structure I've been utilizing the Singleton class for accessing global variables. The problem is that whenever I need to access a variable outside of the class I'm working on, I have a choice of either modifying the code to pass a reference to the variable or just throw it in the singleton. Of course throwing it in the singleton is a lot less code and

How to stop a variable from being destroyed on pressing F5 in javascript

由 喜夏-厌秋 提交于 2019-12-12 21:26:00
问题 I have the following code <html> <head> <script> var m=0; function add() { m++; } </script> </head> <body> <button onclick="add();">click</button> </body> </html> But if I refresh the page then again the value of m starts from 0. How can I persist the value of m between each load of the page on a client machine? 回答1: you can use cookies from javascript. check this link. http://www.w3schools.com/js/js_cookies.asp here is the working code sample: <html> <head> <script> var m=getCookie("m"); if

Using Local Special Variables

由 放肆的年华 提交于 2019-12-12 19:12:12
问题 For prototyping convenience I've relied on a number of global variables which are heavily used throughout the code. But now I'd like to make some of them local (but dynamic). Is there any significant downside (eg, efficiency, something else) to declaring them locally special instead of global? 回答1: Unpopular features of special variables include: Lack of referential transparency This makes it harder to reason functionally about your code. It means that your function produces different results

What is the proper way to create a filter _GET (or _POST) variable?

由 一曲冷凌霜 提交于 2019-12-12 18:19:12
问题 Need an explanation on this.. I'm adding pagination to a website, and need a pointer on Filter Input/Escape Output. As you can see below, the newly created page global defaults to page 1 when the page first loads, and this is the correct behavior, using the shorthand ternary operator. $itemsPerPage = 20; $numOfFilms = $totalRows->rows; $numOfPages = ceil($numOfFilms / $itemsPerPage); $filter ='page'; $getPages = isset($_GET[$filter]) ? $_GET[$filter] : 1; var_dump($getPages); // <-- Testing

Variables can only be “declared” globally, but cannot be modified/(initialized separately)

由 删除回忆录丶 提交于 2019-12-12 13:02:06
问题 Disclaimer: This might be a very trivial question (although I cannot find an answer for it) , and a purely theoretical question (I never needed to do this, nor ever saw code that uses such constructs, but I am just curious how/why this happens the way it does.) The C/C++ double tag, because I tested the bit of code on both C and C++ and it is just 4 lines of code (and the only difference is that gcc/clang give a warning while g++/clang++ give an error.) Background: In replying to another

How to access constants in Angularjs Template

由 别说谁变了你拦得住时间么 提交于 2019-12-12 12:32:44
问题 How do I access constants defined in common js file into template of different module. if I have defined a constant like this in my MainModule.js which is included in the beginning of the main html file > var myApp = angular.module('AC' .....); > myApp.constant('timeoutValue',5); I was able to access my constant in my controller.js by passing "timeoutValue" to it. But I am unable to access it in my template.html/partial. How can I access "timeoutValue" in my template.html/partial file 回答1:

how to set a int value passed by parameter to a function and assign it to global so I can use outside of the function?

由 扶醉桌前 提交于 2019-12-12 12:31:54
问题 how to set a int value passed by parameter to a function and assign it to global so I can use outside of the function? Example: int assignValues(int valor_assign1, valor_assign2){ valor_assign1 = 7; valor_assign2 = 3; } main (){ int valor1 = 0; int valor2 = 0; assignValues(valor1,valor2); printf("%d,%d",valor1, valor2); } The output is actually 0,0 I want it to be 7,3 how do I do this? I know its a simple question but I've been trying and searching but I can't find anything like that =/

MATLAB: What happens for a global variable when running in the parallel mode?

由 眉间皱痕 提交于 2019-12-12 11:13:26
问题 What happens for a global variable when running in the parallel mode? I have a global variable, "to_be_optimized_parameterIndexSet", which is a vector of indexes that should be optimized using gamultiobj and I have set its value only in the main script(nowhere else). My code works properly in serial mode but when I switch to parallel mode (using "matlabpool open" and setting proper values for 'gaoptimset' ) the mentioned global variable becomes empty (=[]) in the fitness function and causes
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