succinct | A collection of succinct data structures | Build Tool library

I have an if statement in Ruby that combines the == and || operators, and it's quite verbose. What would be a more succinct way to write this:

So, I have a function f that takes a string as input. I want to create a function g that maps f to a vector of strings. I.e.

g 'Hello' 'world'

should yield

(f 'Hello')(f 'world')

Here's what I did:

I'm trying to find a way of checking if I am on the last element of an iterator in a for loop without using .clone(); currently I'm doing this:

I have a set of field names as follows:

I'm trying to conditionally add a few classes in React like this....

I have structures defined as:

We have a bunch of .bat build scripts which are invoked by a PowerShell based GitLab runner that were recently refactored from:

I have a dataframe containing some values where I would like to check for each column, count the number of times a logical condition is met. I can manage this in base R, however I am struggling with the dplyr package.

An example dataframe:

Wasn't quite sure how to word the question succinctly, so I hope the above image helps to illustrate what I'm trying to accomplish.

I'm developing sites using Bootstrap and our designer keeps throwing curveballs at us. At first, the absolute element in the example used to just be a solid color extending to the edge of the viewport--ezpz, just use overflow:hidden somewhere and make the element 9999px wide, no problem. But now we're beginning to use pictures and gradients inside of these suckers, where I will need to know where the edge of the screen is, or otherwise cut off some of the image or only see a portion of the gradient.

I am fully aware that I am able to accomplish this with JS and some simple math, but I would like to know if there are any solutions using styles that can get the job done. I tend to develop sites using a very black and white approach wherever possible and view using JS to handle "styling" as a hack, rather than a solution. It feels like I'm brute forcing something that should have a way to finesse it. So I'm more or less just curious if there is a solution that will make my brain a little happier, rather than "how do I do this plz?"

Here's a fiddle, specifically showing the issue with a gradient. Example 1 with solid black works great. Example 2 with a gradient is too wide and basically just looks red (but would look great on a monitor with 20k pixel width!). I'm wondering if there's maybe some clever use of the vw unit that would solve this?