Support for .eval function

[saragee3]

Summary

What:

Similar to https://github.com/puppeteer/puppeteer/blob/v5.5.0/docs/api.md#pageevaluatepagefunction-args. Sinco v1's HeadlessBrowser class already has a click function that pretty much fulfills this requirement. Argument should be a callback in this case.

Why:
#19 (comment)

User will be able to execute commands on the dev console. This could be used for scraping information, targeting children devs for testing ui, etc.

Acceptance Criteria

Below is a list of tasks that must be completed before this issue can be closed.

• Write documentation
• Write unit tests
• Write integration tests

Example Pseudo Code (for implementation)

I assume that it will mirror the existing click function.

Naming

• eval
• exec
• ..... open

[saragee3]

@ebebbington any suggestions on naming? also, when is the projected sinco v1 release date? seems like an easy enough change that i could merge this into v1 too

[ebebbington]

I think eval is ok - maybe things like query? I like exec too, I guess I’m just trying to find words that match the name for running code on the dev console

Projected release is for end of 2020... lol, was hoping to get a second review on it (also as we’re doing multiple reviews based on PR type), but if you want to tackle it now or this year then feel free to start :)

[saragee3]

cool, let's go with eval for now n branch off of v1! i suggested the PR by type on a phone rant one day lol do you like it so far... or too many hurdles?