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