pretentious | writing characterization tests - Generate RSpec | Application Framework library

Do you need to sort the array by element value ascendingly? You could provide your own sorting function to the Array.prototype.sort method.

Here is a solution with dplyr and purrr. I use 2 helper functions, one to calculate month difference and one to calculate a cumulative sum that resets when a threshold is reached, credit to this post.

I calculate the month difference with the lagging date value, but you want to include the first one which will be NA. One weird part is that to include NA the easiest for me was to convert NA to some value 3 or greater. I arbitrarily made it 300. You could likely modify the sum_reset_at function to handle NA the way you want. You might also want to condense the code in some way since I do multiple mutate calls and then deselect those column, but I did it all in seperate lines to make it more clear what was happening. I think this functional programming solution will be quicker, but I haven't tested it on a large dataset compared to your current solution.

I don't think that the SK engine will scale the sprite in-between draws i.e. screen refreshes, so it'll have to be on screen at full size for at least 1 frame, which is 1/60s. I suspect that the SK engine then works out how much to scale per frame, so in the next frame it's probably completely gone. E.g. if you wanted to scale to 25% over 1 second, SK would think that it's been 0.01666667s since the last draw, so the amount to scale by is 1/60 x 75% = 1.25%.

If the duration of the action is less than the time per frame, the effect will be 100% one frame and 0% the next.

If you research 'human persistence of vision' you'll find a lot of information (which I've not gone into myself), which may be why it appears to 'stay for around a second' rather than just 1/60s

As a very basic check, put a sprite on screen in didMoveTo(:view) at a random point then move it to a random point in update(), so it'll move every time update() runs (every 1/60s). If you see it flickering around, you'll know that you can perceive something appearing for 1/60th second but you won't be able to get this done any faster.

So how I solved it for me really isn't an exact answer to the question posed of creating a dynamic meta tags. I generated a partial specifically for the show and then another partial for the index and order.

Escape strings (eg, pgObj.Description) before building the SQL (string insertSQL). Otherwise you get syntax error from things like

You are between a rock and a hard place.

The problem here is that D3 axis generator (specially when using a time scale) was not created having in mind such customizations.

Let's look at your problem: when using nice() you get the end ticks. However, as you said, the end value may exceed the domain, and that's a well known issue.

Here is a demo, the end date is today but the axis goes to 2020: