反应使用状态错误：重新渲染太多。 React 限制渲染次数以防止无限循环

Question

How do I fix this 'Too many re-renders' error?
I'm using try, catch method, useState, setState react hooks.
I'm trying to get data from api and print on web.
Error occurs here: setEmoticonThm(newEmoticonThms)
Error: Too many re-renders. React limits the number of renders to prevent an infinite loop.

const [emoticonThm, setEmoticonThm] = useState([]);

const getToken = async () => {
  try {
    const emoticon = await axios.get(`${process.env.EMOTICON_ENDPOINT}`, {
      headers: {
        Authorization: accessToken
      }
    })
    let newEmoticonThms = []
    emoticon.data.emoticonPacks.map( (emoticon) => {
      newEmoticonThms.push({
        id: emoticon.id,
        image:url + emoticon.image
      })  
    })
    setEmoticonThm(newEmoticonThms)
  } catch (err) {
    console.log(err)
  }
}

const onClickSticker = () => {
  getToken()
  handleKeyboardOpen()
}

return (
 ...
 <Sticker onClick={onClickSticker}/>
 <TabContainer>
      {emoticonThm.map((emoticon, index) => {
           return (
                <EmoticonThmButton 
                     key={index}
                     onClick={setSelectedThm(index)}
                 >
                      <EmoticonThmImage
                           key={index}
                           onClick={onEmoticonClick}
                           src={img}
                      />
                 </EmoticonThmButton>
           )
        })}
 </TabContainer>
)

I added my code. How can I get it right? TT

Answer 1

Instead of onClick={setSelectedThm(index)} do onClick = {()=>setSelectedThm(index)}

onClick={setSelectedThm(index)} is causing too many rerenders, the function gets called on the rendering phase. Instead of directly calling the function, you just pass the reference of the function.