为什么jslint hightlight ++？

Question

I have the following code:

for (i = 0; i < json.AnsData.length; i++) {

jsLint is telling me:

Warning 96  JS Lint: Unexpected '++'.

Does anyone know why this is?

Answer 1

From http://www.jslint.com/lint.html :

The ++ (increment) and -- (decrement) operators have been known to contribute to bad code by encouraging excessive trickiness. They are second only to faulty architecture in enabling to viruses and other security menaces. Also, preincrement/postincrement confusion can produce off-by-one errors that are extremely difficult to diagnose. There is a plusplus option that allows the use of these operators.

JSLint is very strict and reflects the views of its author, Douglas Crockford. Crockford is awesome, but he's also very opinionated and some people find his opinions go too far for their tastes. If you find that avoiding ++ isn't something you can get behind, try JSHint instead of JSLint (or set the option in JSLint to tolerate ++ ).