45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
/**
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* @fileoverview Rule to check for ambiguous div operator in regexes
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* @author Matt DuVall <http://www.mattduvall.com>
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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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module.exports = {
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meta: {
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type: "suggestion",
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docs: {
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description: "disallow division operators explicitly at the beginning of regular expressions",
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category: "Best Practices",
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recommended: false,
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url: "https://eslint.org/docs/rules/no-div-regex"
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},
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schema: [],
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messages: {
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unexpected: "A regular expression literal can be confused with '/='."
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}
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},
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create(context) {
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const sourceCode = context.getSourceCode();
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return {
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Literal(node) {
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const token = sourceCode.getFirstToken(node);
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if (token.type === "RegularExpression" && token.value[1] === "=") {
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context.report({ node, messageId: "unexpected" });
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}
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}
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};
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}
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};
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