expression Questions

1

I have an Azure DevOps pipeline that is used to rotate some keys. There are two primary requirements - Only rotate one key at at time. Any key can be rotated ad-hoc through a manual run. To do th...
Glycerite asked 20/10, 2020 at 15:57

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I'm a newbie to Java. I have provided a short snippet from my code for BFS. public int bfs(Person p, Person q) { private HashMap<Person, boolean> marked; private int count; marked = new...
Stone asked 19/1, 2016 at 19:34

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Consider the following code: struct S { S& operator=(const S&) = default; }; int main() { &(S() = S()); } GCC (trunk) complains with: error: taking address of rvalue [-fpermissi...

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I've read multiple posts and blogs similar to Delegate-based strongly-typed URL generation in ASP.NET MVC But none of them really quite do what I'd like to do. Currently I have a hybrid approach ...
Rigby asked 17/12, 2015 at 22:44

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This is a follow-up my original question for how to pass an expression with subscript to a geom_text label in ggplot. Duck provided a great solution using parse = T within the geom_text() command. ...
Indecorous asked 9/9, 2020 at 16:23

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I am attempting to pass an expression with subscript to a single geom_text() label in ggplot. Here is my code right now: my_exp <- expression('my_exp'[s][u][b]) my_data <- data.frame( var...
Tiemroth asked 9/9, 2020 at 14:15

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I'm asking with regards to C#, but I assume it's the same in most other languages. Does anyone have a good definition of expressions and statements and what the differences are?
Eraste asked 21/8, 2008 at 0:28

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I'm having trouble understanding the difference between text() and node(). From what I understand, text() would be whatever is in between the tags <item>apple</item> which is apple in t...
Laxity asked 31/7, 2012 at 16:9

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Why are they called "primary"? In the order of evaluence they are the first? C++03 standard defines the expression in chapter 5 (Note 1): An expression is a sequence of operators and operands ...
Pyrogallate asked 23/6, 2013 at 9:49

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for my selenium tests I need an value provider to get a 5-digit number in every case. The problem with javascript is that the api of Math.random only supports the generation of an 0. starting float...
Endothelium asked 1/2, 2010 at 8:46

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I'm curious how performant the Expression.Compile is versus lambda expression in the code and versus direct method usage, and also direct method calls vs virtual method calls (pseudo code): var fo...
Sabbatarian asked 4/3, 2016 at 20:39

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Is it possible to have a condition like an if-else or a Ternary Operator inside the @Mapping(expression="java(...)") I have a method that returns the last item of an ArrayList, but in ca...
Ozalid asked 26/6, 2020 at 14:31

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Since different languages have different definitions for an expression and a statement, what is the difference between them in Dart?
Cogwheel asked 9/12, 2018 at 9:29

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I encountered the code like below. return new Promise(function (resolve, reject) { if (!message) return reject(new Error('Requires message request to send')); message = (0, _getURLJWT)(mes...
Bagatelle asked 14/6, 2020 at 0:55

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I have a very long regular expression, which I wish to split into multiple lines in my JavaScript code to keep each line length 80 characters according to JSLint rules. It's just better for reading...
Hendrix asked 7/9, 2012 at 11:17

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There are many algorithms to evaluate expressions, for example: By Recursive Descent Shunting-yard algorithm Reverse Polish notation Is there any way to evaluate any mathematical expression us...
Hypallage asked 17/9, 2009 at 10:27

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Today I saw a really strange type deduction. Here is the code: unsigned int y = 15; int k = 5; auto t = k - y / 2; Since k is int, I assumed that type of t should be int too. But to my surprise,...
Ibo asked 3/5, 2020 at 18:38

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I have a list of objects and I want to remove all objects that are empty except for one, using filter and a lambda expression. For example if the input is: [Object(name=""), Object(name="fake...
Licastro asked 8/6, 2011 at 16:23

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I want to make a new string by replacing digits with %d for example: Name.replace( "_u1_v1" , "_u%d_v%d") ...but the number 1 can be any digit for example "_u2_v2.tx" Can I give replace() a wi...
Seismism asked 29/9, 2013 at 23:23

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I have a simple arithmetic expression data structure that I want to be able to print. For sake of simplicity here I have made an example with 3 binary operations, addition, multiplication and divis...
Piwowar asked 11/4, 2020 at 15:39

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I am trying to combine multiple expressions in R into a single expression. Ideally, I would be able to do something like this: g <- expression(exp(a[1]*x)/(1 + exp(a[1]*x))) h <- expression(e...
Hodeida asked 21/2, 2013 at 2:56

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I'm trying to figure out of if there is a simple syntax for converting a Method Group to an expression. It seems easy enough with lambdas, but it doesn't translate to methods: Given public delega...
Britten asked 16/6, 2009 at 21:54

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I have an api service that calls another api service. When I set up the Mock objects, it failed with an error: NotSupportedException: expression references a method that does not belong to the m...
Anaclinal asked 4/12, 2014 at 4:8

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I am using AgileMapper with this code: source.Map().OnTo(target, (options) => options.IgnoreSources((options) => options.If((value) => value is null) ) ); However, the compiler is co...
Fraction asked 10/3, 2020 at 7:55

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I was wondering if there is any difference in the way SQL performs on these join statements: SELECT * FROM a,b WHERE a.ID = b.ID SELECT * FROM a JOIN b ON a.ID = b.ID SELECT * FROM a JOIN b USIN...
Antabuse asked 13/4, 2011 at 19:8

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