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JSLint but for jQuery! This is primarily to support my strict jQuery ideals, and may hurt your feelings. :P

This is a static analysis tool, just like JSLint. It is not yet intended to be used as a runtime analysis tool in the browser, but I wouldn't say no to such a Pull Request.


var jqlint;
jqlint = require('jqlint');
// example code to lint
var code;
code = '$("#id").find(".class").attr("attr", "value");'
var report;
report = jqlint(code);
// report.errors will be an Array of errors found, just like the JSLint report


These will hopefully be reduced over time as jqlint gains sophistication.

  • jQuery is available in any scope as jQuery or $

  • any identifier (e.g. variable or property name) that begins or ends with $ is a cached jQuery selector e.g. $button, input$, etc


The only way to set options currently is to use block comments in your code, like JSLint. For example: /*jslint angular:true*/

angular (default: false)

  • if true: identifiers beginning with $ will not be treated like cached jQuery selectors (e.g. $scope)

Detected Errors

This list will continue to grow.

jqlint currently detects:

  • use of features deprecated in jQuery 1.3: jQuery.browser, jQuery.boxModel

  • use of features deprecated in jQuery 1.7: .die(), .live(), .selector, jQuery.sub()

  • use of features superseded in jQuery 1.7: .bind(), .unbind(), .delegate(), .undelegate()

  • use of features deprecated in jQuery 1.8: .andSelf(), .error(), .load(), .unload(), .size(), .toggle()

  • use of features deprecated in jQuery 1.8: .context

  • use of features designed only for jQuery-internal use:

  • deferred = $.Deferred() in constructor form without new keyword