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/**
* @fileoverview Disallow sparse arrays
* @author Nicholas C. Zakas
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
type: "problem",
docs: {
description: "disallow sparse arrays",
category: "Possible Errors",
recommended: true,
url: "https://eslint.org/docs/rules/no-sparse-arrays"
},
schema: []
},
create(context) {
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
return {
ArrayExpression(node) {
const emptySpot = node.elements.indexOf(null) > -1;
if (emptySpot) {
context.report({ node, message: "Unexpected comma in middle of array." });
}
}
};
}
};
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