Recent questions tagged Variables

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variables - How to make points one color when a third column equals zero, and another color otherwise, in Gnuplot?

I need to vary the point color for a row of values based on the color in one column. The data: # x y z 1 ... instead of the two I'm looking for. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - setq and defvar in Lisp

I see that the Practical Common Lisp uses (defvar *db* nil) for setting up a global variable. Isn't it ... of using defvar vs. setq? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - javascript pass object as reference

i have a object, which is getting passed in many different functions inside a function. these functions may or may not change ... : 'new text', name: 'john'}; } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Javascript: Converting String to Number?

Is there any way to convert a variable from string to number? For example, I have var str = "1"; Can I change it to var str = 1; Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - In Rust, what's the difference between "shadowing" and "mutability"?

In Chapter 3 of the Rust Book, Variables and Mutability, we go through a couple iterations on this theme in order ... such that no let x can reassign its value? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Two values from one input in python?

This is somewhat of a simple question and I hate to ask it here, but I can't seem the find the answer ... know a good way to do this elegantly and concisely? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - BigInteger in C?

What is the easiest way to handle huge numbers in C? I need to store values in the Area 1000^900, or in ... to do that? Any help would really be appreciated! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Angular - shared service between components doesn't work

I have a service where I declare my variable. In my component I use this variable to put data into it. Service: ... it. Does somebody know how to do this? Thx Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - What is the difference between "$@" and "$*" in Bash?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - How to remove a newline from a string in Bash

I have the following variable. echo "|$COMMAND|" which returns | REBOOT| How can I remove that first newline? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Length of string in bash

How do you get the length of a string stored in a variable and assign that to another variable? myvar="some ... do you set another variable to the output 11? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - var name produces strange result in Javascript

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - What is the difference between var and val in Kotlin?

What is the difference between var and val in Kotlin? I have gone through this link: KotlinLang: Properties ... in the documentation and not just in general. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Multiple left-hand assignment with JavaScript

var var1 = 1, var2 = 1, var3 = 1; This is equivalent to this: var var1 = var2 = var3 = 1; ... way to confirm this in JavaScript? Using some profiler possibly? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Error: "Cannot modify the return value" c#

I'm using auto-implemented properties. I guess the fastest way to fix following is to declare my own ... use a reference type for the intermediate expression. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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871 views

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variables - Error if don't check if {{object.field}} exists

I have a question about checking if some field in object exists. I want to print all categories which user has so ... Have you ever had a problem like this one? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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986 views

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variables - What is the difference between an int and a long in C++?

Correct me if I am wrong, int is 4 bytes, with a range of values from -2,147,483,648 to 2,147,483, ... the difference in C++? Can they be used interchangeably? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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878 views

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variables - Is it better in C++ to pass by value or pass by constant reference?

Is it better in C++ to pass by value or pass by constant reference? I am wondering which is better practice. I ... you are not making a copy of the variable. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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924 views

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variables - C# how to use a dictionary name which is inside a string

This question already has answers here: question from:https://stackoverflow.com/questions/65839134/c-sharp-how-to-use-a-dictionary-name-which-is-inside-a-string...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables changing after a function call in python

Ive been working on some code recently for a project in python and im confused by the output im getting ... /questions/65848733/variables-changing-after-a-function-call-in-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - How can I use python to insert text from one file to another in various lines?

I am totally new to python, and I have the following question. I have searched quite a bit and while I can find ... -python-to-insert-text-from-one-file-to-another-in-various-lines...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - Detect parameters in a ROBLOX player's message? (LUA)

I'm trying to make a simple 'kill command' in Roblox Studio where you type ";kill player" and it will ... .com/questions/65856084/detect-parameters-in-a-roblox-players-message-lua...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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925 views

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variables - Define PHP string literal with $ as data

This question already has answers here: question from:https://stackoverflow.com/questions/65857159/define-php-string-literal-with-as-data...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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886 views

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variables - Access and change pictureBox controller using string

I have a connect four game on a 10x10 grid where each slot is a PictureBox. Clicking one of the ... .com/questions/65887236/access-and-change-picturebox-controller-using-string...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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993 views

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variables - How to automatically print all parameter values of Java function at runtime

I want to print automatically all the parameter values of my functions at runtime. Just imagin that I have ... automatically-print-all-parameter-values-of-java-function-at-runtime...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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983 views

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variables - Is it possible to set Ansible Vars from existing facts?

I find it easy to describe what I want to do showing how I tried to implement it, as below. In one ... questions/65925981/is-it-possible-to-set-ansible-vars-from-existing-facts...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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979 views

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variables - Apache match {HTTP_HOST} in {HTTP_COOKIE}

I want to check if {HTTP_HOST} is in {HTTP_COOKIE} and if not redirect to one cookie value. The ... stackoverflow.com/questions/65952258/apache-match-http-host-in-http-cookie...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variables - How to manually conduct a historical decomposition of shocks from an SVAR Model in R

I have the following xts dataset in R, which I'm using to build an SVAR model. data <- structure(c(1 ... to-manually-conduct-a-historical-decomposition-of-shocks-from-an-svar-model...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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