Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | 1x 24x 24x 24x 8x 8x 32x 32x 20x 12x 12x 32x 32x 32x 32x 32x 12x 20x 2x 2x | import React from 'react'; import PropTypes from 'prop-types'; import KaTeX from 'katex'; const createMathComponent = (Component, { displayMode }) => { class MathComponent extends React.Component { constructor(props) { super(props); this.usedProp = props.math ? 'math' : 'children'; this.state = this.createNewState(null, props); } componentWillReceiveProps() { this.setState(this.createNewState); } shouldComponentUpdate(nextProps) { return nextProps[this.usedProp] !== this.props[this.usedProp]; } createNewState(prevState, props) { try { const html = this.generateHtml(props); return { html, error: undefined }; } catch (error) { Eif (error instanceof KaTeX.ParseError || error instanceof TypeError) { return { error }; } throw error; } } generateHtml(props) { const { errorColor, renderError } = props; return KaTeX.renderToString(props[this.usedProp], { displayMode, errorColor, throwOnError: !!renderError }); } render() { const { error, html } = this.state; const { renderError } = this.props; if (error) { return renderError ? ( renderError(error) ) : ( <Component html={`${error.message}`} /> ); } return <Component html={html} />; } } MathComponent.propTypes = { children: PropTypes.string, errorColor: PropTypes.string, math: PropTypes.string, renderError: PropTypes.func }; return MathComponent; }; export default createMathComponent; |