javascript - "SyntaxError: missing ) after condition"

Question

关闭。这个问题是not reproducible or was caused by typos .它目前不接受答案。












想改进这个问题？将问题更新为 on-topic对于堆栈溢出。

2年前关闭。




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它给了我这个“SyntaxError:missing ) after condition”——但我把“(”放在 if 之后并关闭它。PS我几天前开始尝试学习，所以请原谅我的无知。尝试在线搜索但无法弄清楚出去

MaxAverage = (414 + 212 + 51) / 3;

MikeAverage = (1511 + 123 + 12) / 3;

MaryAverage = (412 + 1321 + 232) / 3;


if (MaxAverage > MikeAverage && MaxAverage > Mary average && MikeAverage > MaryAverage) {
    console.log('Max wins with an average of ' + MaxAverage + '. ' + 'Mike is the runner-up with an average of ' + MikeAverage + '. ' + 'Mary is last with an average of ' + MaryAverage + '.');

} 

else if (MaryAverage > MaxAverage && MaryAverage > MikeAverage && MaxAverage > MikeAverage) {
    console.log('Mary wins with an average of ' + MaryAverage + '. ' + 'Max is the runner-up with an average of ' + MaxAverage + '. ' + 'Mike is last with an average of ' + MikeAverage + '.');

} 

else if (MikeAverage > MaxAverage && MikeAverage > MaryAverage && MaryAverage > MaxAverage) {
    console.log('Mike wins with an average of ' + MikeAverage + '. ' + 'Mary is the runner-up with an average of ' + MaryAverage + '. ' + 'Max is last with an average of ' + MaxAverage + '.');

} 

else if (MaxAverage > MikeAverage && MaxAverage > MaryAverage && MaryAverage === MikeAverage) {
    console.log('Max wins with an average of ' + MaxAverage + '. ' + 'Mary and Mike are tied for second with an average of ' + MaryAverage);

} 

else if (MaryAverage > MaxAverage && MaryAverage > MikeAverage && MikeAverage === MaxAverage) {
    console.log('Mary wins with an average of ' + MaryAverage + '. ' + 'Max and Mike are tied for second with an average of ' + MikeAverage);

} 

else if (MikeAverage > MaxAverage && MikeAverage > MaryAverage && MaxAverage === MaryAverage) {
    console.log('Mike wins with an average of ' + MikeAverage + '. ' + 'Max and Mary are tied for second with an average of ' + MaryAverage) : ;
} 

else {
    console.log('Max, Mary and Mike are all tied with an average of ' + JohnAverage);
}

伙计，我是个盲人，谢谢大家的回答!

Answer 1

在第一个 if 语句中，'Mary' 和 'average' 之间有一个空格。

JavaScript 提示，因为它应该在“玛丽”之后找到一个右括号