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Parse indentation level with PEG.js

I have essentially the same question as PEG for Python style indentation, but I’d like to get a little more direction regarding this answer. The answer successfully generates an array of strings that are each line of input with ‘INDENT’ and ‘DEDENT’ between lines. It seems like he’s pretty much used PEG.js to tokenize, but no real parsing is happening.

How to toggle a boolean?

Is there a really easy way to toggle a boolean value in javascript? So far, the best I’ve got outside of writing a custom function is the ternary: Answer This holds true in most languages.

Sending command line arguments to npm script

The scripts portion of my package.json currently looks like this: …which means I can run npm start to start the server. So far so good. However, I would like to be able to run something like npm start 8080 and have the argument(s) passed to script.js (e.g. npm start 8080 => node ./script.js server 8080). Is this possible? Answer npm

Removing event listener which was added with bind

In JavaScript, what is the best way to remove a function added as an event listener using bind()? Example The only way I can think of is to keep track of every listener added with bind. Above example with this method: Are there any better ways to do this? Answer Although what @machineghost said was true, that events are added

How to stringify event object?

JSON.stringify(eventObject); gives: TypeError: Converting circular structure to JSON dojox.json.ref.toJson(eventObject); gives: TypeError: Accessing selectionEnd on an input element that cannot have a selection. Is there some library/code ready to use to accomplish it ? Answer You won’t be able to serialize an event object with JSON.stringify, because an event object contains references to DOM nodes, and the DOM has circular references

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