42 lines
1.0 KiB
JavaScript
42 lines
1.0 KiB
JavaScript
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/**
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* @fileoverview Utility functions for JSX
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*/
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'use strict';
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const elementType = require('jsx-ast-utils/elementType');
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const COMPAT_TAG_REGEX = /^[a-z]|-/;
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/**
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* Checks if a node represents a DOM element.
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* @param {object} node - JSXOpeningElement to check.
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* @returns {boolean} Whether or not the node corresponds to a DOM element.
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*/
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function isDOMComponent(node) {
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let name = elementType(node);
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// Get namespace if the type is JSXNamespacedName or JSXMemberExpression
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if (name.indexOf(':') > -1) {
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name = name.slice(0, name.indexOf(':'));
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} else if (name.indexOf('.') > -1) {
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name = name.slice(0, name.indexOf('.'));
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}
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return COMPAT_TAG_REGEX.test(name);
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}
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/**
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* Checks if a node represents a JSX element or fragment.
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* @param {object} node - node to check.
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* @returns {boolean} Whether or not the node if a JSX element or fragment.
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*/
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function isJSX(node) {
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return node && ['JSXElement', 'JSXFragment'].indexOf(node.type) >= 0;
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}
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module.exports = {
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isDOMComponent,
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isJSX
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};
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