Contents

/**
 * @fileoverview Rule to flag comparisons to the value NaN
 * @author James Allardice
 * @copyright 2014 Jordan Harband. All rights reserved.
 * @copyright 2013 James Allardice. All rights reserved.
 */

"use strict";

//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

module.exports = function(context) {

    return {
        "BinaryExpression": function(node) {
            if (/^(?:[<>]|[!=]=)=?$/.test(node.operator) && (node.left.name === "NaN" || node.right.name === "NaN")) {
                context.report(node, "Use the isNaN function to compare with NaN.");
            }
        }
    };

};

module.exports.schema = [];

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
eslint_node_modules-1.6.0.1	vendor/node_modules/eslint/lib/rules/use-isnan.js
eslint_node_modules-1.6.0	vendor/node_modules/eslint/lib/rules/use-isnan.js