英文:
ERROR TypeError: text.split is not a function. (In 'text.split(/\s+/)', 'text.split' is undefined)
问题
App.js
const [text, setText] = React.useState('');
const handleOnChange = (text) => {
setText(text)
}
<View style={styles.textarea}>
<TextInput
placeholder="Enter Your text here!!"
placeholderTextColor='#666161'
textAlignVertical="top"
value={text}
multiline={true}
onChangeText={text => handleOnChange(text)} // Use onChangeText instead of onChange
style={{
padding: 15,
width: windowWidth / 1.10,
height: verticalScale(350),
borderColor: '#fff',
backgroundColor: '#f3f3f3',
borderWidth: 1,
borderRadius: scale(10),
fontSize: RFPercentage(3),
fontWeight: 'bold',
fontFamily: 'Roboto',
}}
/>
</View>
<Text style={styles.textsummy}>
{text.split(/\s+/).filter((element) => { return element.length !== 0 }).length} <Text style={{ color:'#E5E5E5', fontWeight:'normal' }}>words and</Text> {text.length} <Text style={{ color:'#E5E5E5', fontWeight:'normal' }}>characters</Text>
</Text>
Error:
ERROR TypeError: text.split is not a function. (In 'text.split(/\s+/)', 'text.split' is undefined)
在我的项目中，有一个文本区域和文本区域值存储在 text 状态中，我将在 text 状态中应用 split 函数，因为如果文本区域为空，则将计为单词或字符，如果输入一个单词并按回车，则将计为1个单词，而不是两个，只计算单词，而不计算空格。
但是，每当我尝试运行我的项目并在文本区域中输入文本时，都会出现如上所示的错误。
有人可以告诉我我犯了什么错误。
英文:
App.js
const [text, setText] = React.useState('');
const handleOnChange = (text) => {
setText(text)
}
<View style={styles.textarea}>
<TextInput
placeholder="Enter Your text here!!"
placeholderTextColor={'#666161'}
textAlignVertical="top"
value={text}
multiline={true}
onChange={(text)=>handleOnChange(text)}
style={{
padding: 15,
width:windowWidth/1.10,
height: verticalScale(350),
borderColor: '#fff',
backgroundColor: '#f3f3f3',
borderWidth: 1,
borderRadius: scale(10),
fontSize: RFPercentage(3),
fontWeight: 'bold',
fontFamily: 'Roboto',
}}
/>
</View>
<Text style={styles.textsummy}>{text.split(/\s+/).filter((element) => { return element.length !== 0 }).length} <Text style={{color:'#E5E5E5',fontWeight:'normal'}}>words and</Text> {text.length} <Text style={{color:'#E5E5E5',fontWeight:'normal'}}>characters</Text></Text>
Error:
ERROR TypeError: text.split is not a function. (In 'text.split(/\s+/)', 'text.split' is undefined)
In my project, one textarea and textarea value are stored in text the state and I will apply the split function in text the state
because it will count as a word or character if the textarea is null then the word is 0 or if you type one word and press enter then the word is 1, not a two in sort it only counts the word, not a blank space.
but whenever I try to run my project and type something on textarea view it's given me an error as given above.
anyone can tell me where I do a mistake
答案1
得分: 1
这可以通过两种方式解决：
方法1： 使用onChnageText：
onChangeText={(text) => handleOnChange(text)}
方法2：使用OnChange：
onChange={(event) => handleOnChange(event.nativeEvent.text)}
英文:
This can be solved in two ways :
Method 1 : Using onChnageText:
onChangeText={(text)=>handleOnChange(text)}
Method 2 : Using OnChange :
onChange={(event) => handleOnChange(event.nativeEvent.text)}
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