You can install ESLint using npm:
npm install -g eslint
eslint test.js test2.js
That's not really a question, but I got it. I'm not trying to convince you that ESLint is better than JSHint. The only thing I know is that ESLint is better than JSHint for what I'm doing. In the off chance you're doing something similar, it might be better for you. Otherwise, keep using JSHint, I'm certainly not going to tell you to stop using it.
ESLint is slower than JSHint, usually 2-3x slower on a single file. This is because ESLint uses Espree to construct an AST before it can evaluate your code whereas JSHint evaluates your code as it's being parsed. The speed is also based on the number of rules you enable; the more rules you enable, the slower the process.
Despite being slower, we believe that ESLint is fast enough to replace JSHint without causing significant pain.
ESLint does both traditional linting (looking for problematic patterns) and style checking (enforcement of conventions). You can use it for both.
We are implementing ECMAScript 6 support piece-by-piece starting with version 0.12.0. You'll be able to opt-in to any ECMAScript 6 feature you want to use.
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