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0645acf21a
* upgrade: docker-compose - user docker compose instead * remove: yarn and clean format js file
51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
/**
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* @fileoverview Disallow sparse arrays
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* @author Nicholas C. Zakas
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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/** @type {import('../shared/types').Rule} */
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module.exports = {
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meta: {
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type: "problem",
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docs: {
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description: "Disallow sparse arrays",
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recommended: true,
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url: "https://eslint.org/docs/latest/rules/no-sparse-arrays"
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},
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schema: [],
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messages: {
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unexpectedSparseArray: "Unexpected comma in middle of array."
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}
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},
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create(context) {
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//--------------------------------------------------------------------------
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// Public
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//--------------------------------------------------------------------------
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return {
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ArrayExpression(node) {
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const emptySpot = node.elements.includes(null);
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if (emptySpot) {
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context.report({ node, messageId: "unexpectedSparseArray" });
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}
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}
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};
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}
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};
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