Я просто погружаюсь в Typescript и пытаюсь внедрить его в один из моих проектов. Тем не менее, я получаю ошибку Cannot find name 'selectValue' при наведении курсора на метод selectValue (см. Изображение ниже). Я что-то упустил в своем tsconfig. json ??
tsconfig. json:
{
"compilerOptions": {
/* Basic Options */
"target": "esnext", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
"module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
"lib": ["es6"], /* Specify library files to be included in the compilation. */
"allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
"jsx": "react-native", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
// "outDir": "./", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "removeComments": true, /* Do not emit comments to output. */
"noEmit": true, /* Do not emit outputs. */
"incremental": true, /* Enable incremental compilation */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
"isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true, /* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* Enable strict null checks. */
"strictFunctionTypes": true, /* Enable strict checking of function types. */
// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
/* Module Resolution Options */
"moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
"baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
"typeRoots": [ /* List of folders to include type definitions from. */
],
"types": [ /* Type declaration files to be included in compilation. */
"react",
"react-native"
],
"allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
"esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
/* Source Map Options */
// "sourceRoot": "./", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "./", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
},
"exclude": [
"node_modules",
"babel.config.js",
"metro.config.js",
"jest.config.js"
]
}
Компонент:
// Imports: Dependencies
import React, { useState } from 'react';
import { Dimensions, Platform, Picker, StyleSheet, Text, View, TouchableOpacity } from 'react-native';
// import DateTimePicker from '@react-native-community/datetimepicker';
import Modal from 'react-native-modal';
import Icon from 'react-native-vector-icons/Ionicons';
Icon.loadFont();
// Screen Dimensions
const { height, width } = Dimensions.get('window');
// Component: List Picker
export const ListPicker = (props: object) => {
// React Hooks: State
const [ modalVisible, toggle ] = useState(false);
const [ value, setValue ] = useState();
// React Hooks: Lifecycle Methods
// Toggle Modal
toggleModal = () => {
try {
// Check Platform (iOS)
if (Platform.OS === 'ios') {
// React Hook: Toggle Modal
toggle((modalVisible) => !modalVisible);
}
// Check Platform (Android)
if (Platform.OS === 'android') {
};
}
catch (error) {
console.log(error);
}
};
// Select Value
selectValue = (value: string) => {
try {
// React Hook: Set Value
setValue(value);
// React Props: onValueChange
props.onValueChange(value);
}
catch (error) {
console.log(error);
}
};
// Render Picker
renderPicker = () => {
try {
return (
<Picker
selectedValue={value}
onValueChange={this.selectValue}>
{props.items.map((item: object) => {
return (
<Picker.Item
label={item.label}
value={item.value}
key={item.key || item.label}
color={item.color}
/>
);
})}
</Picker>
)
}
catch (error) {
console.log(error);
}
};
return (
<View style={styles.container}>
<View style={styles.inputTitleContainer}>
<Text style={styles.inputTitle}>{props.title}</Text>
</View>
<TouchableOpacity onPress={this.toggleModal} style={styles.fieldTextContainer}>
<Text style={styles.fieldText} numberOfLines={1}>{value !== undefined ? value : 'Select'}</Text>
<Icon name="ios-arrow-forward" size={22} style={styles.arrowForward}/>
</TouchableOpacity>
<Modal isVisible={modalVisible} style={styles.modal}>
<View style={styles.modalContainer}>
<View style={styles.pickerHeaderContainer}>
<TouchableOpacity onPress={this.toggleModal} >
<Text style={styles.doneText}>Done</Text>
</TouchableOpacity>
</View>
<View style={styles.pickerContainer}>
{this.renderPicker()}
</View>
</View>
</Modal>
</View>
);
}
// Styles
const styles = StyleSheet.create({
container: {
display: 'flex',
width: width - 32,
marginLeft: 16,
marginRight: 16,
justifyContent: 'center',
},
modal: {
margin: 0,
},
modalContainer: {
height: '100%',
alignItems: 'center',
justifyContent: 'flex-end',
},
pickerHeaderContainer: {
display: 'flex',
flexDirection: 'row',
justifyContent: 'flex-end',
alignItems: 'center',
height: 40,
width: width,
backgroundColor: '#FAFAF8',
borderColor: '#7D7D7D',
borderBottomWidth: StyleSheet.hairlineWidth,
},
pickerContainer: {
height: 220,
width: width,
// backgroundColor: '#CFD3D9',
backgroundColor: 'white',
},
doneText: {
fontFamily: 'System',
color: '#007AFF',
fontWeight: '600',
fontSize: 17,
marginRight: 16,
},
stateContainer: {
alignItems: 'center',
width: 75,
borderColor: '#7D7D7D',
borderBottomWidth: StyleSheet.hairlineWidth,
},
inputTitleContainer: {
width: 75,
marginBottom: 4,
},
inputTitle: {
color: '#7D7D7D',
borderColor: '#7D7D7D',
fontSize: 10,
fontWeight: '600',
textTransform: 'uppercase',
},
fieldTextContainer: {
height: 40,
display: 'flex',
flexDirection: 'row',
justifyContent: 'space-between',
alignItems: 'center',
marginBottom: 4,
borderColor: '#7D7D7D',
borderBottomWidth: StyleSheet.hairlineWidth,
},
fieldText: {
width: width - 32 - 20,
fontFamily: 'System',
fontSize: 17,
fontWeight: '400',
color: '#000000',
alignSelf: 'center',
},
arrowForward: {
color: 'black',
opacity: .3,
marginRight: 7,
},
});
Снимок экрана:
