d2-ui
Version:
44 lines (31 loc) • 1.01 kB
JavaScript
/**
* @fileoverview Disallow sparse arrays
* @author Nicholas C. Zakas
*/
;
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow sparse arrays",
category: "Possible Errors",
recommended: true
},
schema: []
},
create: function(context) {
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
return {
ArrayExpression: function(node) {
var emptySpot = node.elements.indexOf(null) > -1;
if (emptySpot) {
context.report(node, "Unexpected comma in middle of array.");
}
}
};
}
};