my goal is the evaluate the following using .net core and c#.  "XYZ = XYZ"   My goal is the use the following string to evaluate if the string will return true or false. In this example the result should be true whilst in this example:  "XYdddZ = XYZ"   `Which should return false instead.  essentially it would look similar to:  if ("XYZ = XYZ"){  }   EDIT:  the string may be dynamic and contain something like "XYZ = XYZ and XYZ != XYaZ" Therefor splitting may be hard
I can do an eval("something()"); to execute the code dynamically in JavaScript. Is there a way for me to do the same thing in C#?  An example of what I am trying to do is: I have an integer variable (say i) and I have multiple properties by the names: "Property1", "Property2", "Property3", etc. Now, I want to perform some operations on the " Propertyi " property depending on the value of i.   This is really simple with Javascript. Is there any way to do this with C#?
apt vs apt-get error code Strange thing I have here, when apt is locked by something. Respectively, the error codes don't match up. apt update seems to always return success 0, whereas apt-get update returns a proper error code.  vlastimil@vb-nb-mint ~/Development/bash $ sudo apt-get update Reading package lists... Done E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/  vlastimil@vb-nb-mint ~/Development/bash $ echo $? 100  vlastimil@vb-nb-mint ~/Development/bash $ sudo apt update Reading package lists... Done E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/  vlastimil@vb-nb-mint ~/Development/bash $ echo $? 0   apt's location:  vlastimil@vb-nb-mint ~/Development/bash $ which apt /usr/local/bin/apt   apt's version:  vlastimil@vb-nb-mint ~/Development/bash $ apt-show-versions apt apt:amd64/xenial-updates 1.2.12~ubuntu16.04.1 uptodate   I originally wanted to use apt for the manual upgrade script, but this changes the situation. Does someone understand error codes and such in order to help me with this? Was it just coincidence that Tahir Mahmood went on stage? Two logos in beamer after certain frame I have latitude and longitude as 19.0649070739746 and 73.1308670043945 respectively.   In this case both coordinates are 13 decimal places long, but sometimes I also get coordinates which are 6 decimal places long.   Do fewer decimal points affect accuracy, and what does every digit after the decimal place signify? Given a dictionary like so:  my_map = {'a': 1, 'b': 2}   How can one invert this map to get:  inv_map = {1: 'a', 2: 'b'} Is there any way of modifying the preamble, so instead of typing   $\mathtt{x}$ ... \begin{eqnarray}     \mathtt{y} &amp; \mathtt{=} &amp; \mathtt{z^\pi} \end{eqnarray}   I can omit the \mathtt{...} commands? Prove that $\left| f'(x)\right| \leq \sqrt{2AC}$ using integration Suppose that $f(x)$ is a $C^2$ function on $\mathbb{R}$ such that $\left| f(x) \right| \leq A$ and $\left| f''(x) \right| \leq C $ for $x \in \mathbb{R}$. Prove that $\left| f'(x)\right| \leq \sqrt{2AC}$. This is a canonical question and answer developed by the community to help address common questions. If you've been directed here, or your question has been closed as a duplicate, please look through the resources here and use them to shape more specific questions. To browse all canonical questions and answers, including more unit test resources, navigate to the  tag.  This canonical question is intended to address several classes of common questions by providing a quick summary and links to comprehensive resources:   How do I start writing my first unit test?  How do I unit test this code?  I need help writing this unit test.   Salesforce Stack Exchange looks for detailed, specific questions that the community can help you with, and can't write tests on your behalf. We feel that working with the resources below can help you get started, and we encourage you to make an attempt to write your test and return to SFSE with your specific questions when you encounter challenges you can't resolve. Is there a list of the names used for Sauron in Lord of the Rings? How Do Dementors Communicate with Wizards? After T-2, why not send back another T-800? Find the derived subgroup of $A_4$ Find the derived subgroup of $A_4$.   Since it is $A_4$, for a permutation $\sigma$ to be in $A_4$, $\sigma$ must have a cycle structure of $2$ cycles. Therefore, $\sigma=(ab)(cd)$.  The commutator of such elements, would be obviously another permutation of $2$-cycle (of length $2$).  Does it mean that $A'_4=A_4$? SQL Join Differences What's difference between inner join and outer join (left join,right join), and which has the best performance of them?  Thanks! What does it mean when Git says 'rewrite' or 'rename' in a commit message? I have a div 200 x 200 px. I want to place a 50 x 50 px image right in the middle of the div.   How can it be done?  I am able to get it centered horizontally by using text-align: center for the div. But vertical alignment is the issue.. Baking IK into FCurves I have an object containing multiple models with several IK.  One model has fcurves (euler rotation only) which gives motor to linked IK models.  What I need is bake/convert all IK animations into FCurves.  Is it possible? Solve $\frac1x+\frac1y=\frac1{pq}$ For $x,y\in\mathbb{N}$ how many ordered pairs $\left(x,y\right)$ satisfy   $\dfrac{1}{x}+\dfrac{1}{y}=\dfrac{1}{pq}$ where $p,q$ are distinct primes? Airbnb housing gone electrifyingly bad I am staying at a place booked via Airbnb. Something happened and there is no electricity from Friday! The house-owner has provided a super noisy generator, which is inconsistent, meaning that it "randomly" supplies power to some parts of the house, so you cannot rely on it.  Is there any rule/law in SF, CA, USA to describe the compensation one should get from such kind a situation?    The owner owns the whole building. On the ground floor there is a restaurant. On the 1st floor there are the apartments. Something happened in the restaurant, which made the electricity go off, but she didn't give more details, she said "there was an emergency and the power went off". Object emit light distance I created an object, and I wanted it to glow. I used to just place points of light around it, and parent them to it, but using the emit option in the materials seemed so much easier.  But when I gave it an a higher emit than 0, it went only a small distance before the light stopped. I turned it up to 200, and the object was white with light, but the light didn't go any farther. Oh and I changed the color, and nothing happened. I accidentally discovered () that a closing square bracket within an optional argument delimited by [ ] can cause problems.  Here is example code illustrating the issue:  \documentclass{article}   \begin{document}  \tableofcontents  \section[Square brackets ([ and ])]{Square brackets: [ and ]} % bad: the TOC now has "Square brackets ([ and", and the actual title is a mere ")".  Some text.  \section[{Square brackets ([ and ])}]{Square brackets: [ and ]} % good (works as originally intended)  Some text.  \end{document}   The text to be used as the optional (as well as the non-optional) argument contains a ], and this character is not supposed to function as the optional argument terminator but as a matching square bracket/parenthesis. Perhaps this is as it should be, but the question is how to best circumvent any potential problems. Enclosing this in a group works, but I don't know whether doing this has other side effects (perhaps not here in the case of \section but hopefully someone else has a better example of where grouping could lead to a problem). There is no (obvious) way other than writing [{ }] because [ and ] are not normally escaped. That [ and ] are normal characters and bear syntactic function (as optional argument delimiters) creates this potentially problematic situation.  Is simply enclosing the entire optional argument in a group ({ }) a good solution? Are there other/better ways?