Skip to content
The JavaScript Code Quality Tool
JavaScript HTML
Find file
New pull request
Latest commit 2cd0554 @douglascrockford chistory
Failed to load latest commit information.
README It parses and analyzes
browser.js wrap_condition
function.html seashell
help.html chistory
jslint.html title
jslint.js jsdev node
report.js wrap_condition


JSLint, The JavaScript Code Quality Tool

Douglas Crockford


jslint.js contains the jslint function. It parses and analyzes a source file,
returning an object with information about the file. It can also take an object
that sets options.

jslint.html runs the jslint.js function in a web page. The page also depends
on adsafe.js [] (which is not included
in this project) and browser.js and report.js (which are).

browser.js runs the web user interface.

report.js generates the results reports in HTML.

help.html describes JSLint's usage. Please read it.

function.html describes the jslint function and the results it produces.

Please direct questions and comments to

JSLint can be run anywhere that JavaScript (or Java) can run.

The place to express yourself in programming is in the quality of your ideas and
the efficiency of their execution. The role of style in programming is the same
as in literature: It makes for better reading. A great writer doesn't express
herself by putting the spaces before her commas instead of after, or by putting
extra spaces inside her parentheses. A great writer will slavishly conform to
some rules of style, and that in no way constrains her power to express herself
creatively. See for example William Strunk's The Elements of Style

This applies to programming as well. Conforming to a consistent style improves
readability, and frees you to express yourself in ways that matter. JSLint here
plays the part of a stern but benevolent editor, helping you to get the style
right so that you can focus your creative energy where it is most needed.
Something went wrong with that request. Please try again.