33 lines
952 B
JavaScript
33 lines
952 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = getTabIndex;
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var _jsxAstUtils = require("jsx-ast-utils");
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/**
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* Returns the tabIndex value.
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*/
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function getTabIndex(tabIndex) {
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var literalValue = (0, _jsxAstUtils.getLiteralPropValue)(tabIndex);
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// String and number values.
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if (['string', 'number'].indexOf(typeof literalValue) > -1) {
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// Empty string will convert to zero, so check for it explicity.
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if (typeof literalValue === 'string' && literalValue.length === 0) {
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return undefined;
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}
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var value = Number(literalValue);
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if (Number.isNaN(value)) {
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return undefined;
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}
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return Number.isInteger(value) ? value : undefined;
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}
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// Booleans are not valid values, return undefined.
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if (literalValue === true || literalValue === false) {
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return undefined;
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}
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return (0, _jsxAstUtils.getPropValue)(tabIndex);
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}
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module.exports = exports.default; |