you don't need to know closures [...] to be a web developer
This is, technically speaking, true; but it also sends a very bad message when not taken with a whole heap of salt. Closures are an essential part of JavaScript.
If you don't know how closures work in JavaScript, then you simply won't be able to reason about any code that uses them. This is definitely a gap any web developer should aim to close.
And yes, there is a big difference between having mastered web development and being a web developer. People should stop gate-keeping the field by setting up arbitrary rules of who can and cannot be considered part of it.
Overall, people just need to stop caring who is or isn't part of a club, including ourselves. At the end of the day, what does it matter to me if anyone else considers me to be a "web developer™"? I don't get paid according to how many people on twitter agree that I fit my job descriptions. I get paid to write code.
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This is, technically speaking, true; but it also sends a very bad message when not taken with a whole heap of salt. Closures are an essential part of JavaScript.
If you don't know how closures work in JavaScript, then you simply won't be able to reason about any code that uses them. This is definitely a gap any web developer should aim to close.
And yes, there is a big difference between having mastered web development and being a web developer. People should stop gate-keeping the field by setting up arbitrary rules of who can and cannot be considered part of it.
Overall, people just need to stop caring who is or isn't part of a club, including ourselves. At the end of the day, what does it matter to me if anyone else considers me to be a "web developer™"? I don't get paid according to how many people on twitter agree that I fit my job descriptions. I get paid to write code.