Lodash (IDE Warnings)

diegohernandezf · March 29, 2021, 7:14pm

Hi!

I’m finishing JavaScript Syntax II, so I did the practice about rewriting some lodash functions.

gist.github.com

https://gist.github.com/diegohernandezf/f173ae2ebcb0e5f161347714864a29bd

lodash.js

const _ = {
	clamp: function(number, min, max) {
		const lowerClampedValue = Math.max(number, min);
		return Math.min(lowerClampedValue, max);
	},
	inRange: function(number, start, end) {
		// If end is undefined: start = 0; end = start
		if(end === undefined) {
			end = start;
			start = 0;

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Although it seems to work perfectly, I would be very grateful if it receives a more expertise eye because my IDE (WebStorm) is warning me in line 51, 57 and 58. It says that: “Possible iteration over unexpected (custom / inherited) members, probably missing hasOwnProperty check”.
I think I nearly understood what it means, but I don’t know why it’s appearing here because we’re iterating over an array, why I should check if the object that I’m iterating have one of the iterated properties? Does it really makes sense?

Also, any style and readability advices would be very appreciated!

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Lodash (IDE Warnings)

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