SyntaxError: missing ) after argument list

消息

语法错误: 参数列表后面缺少 )

错误类型

SyntaxError.

什么地方出错了?

有一个函数在调用时出现错误。这可能是一个错误，丢失运算符或者转义字符等。

示例

因为没有使用 ”+“ 操作符来连接字符串，JavaScript 认为 log 函数的参数的值只是 “PI: ”，在这种情况下，它应该用一个右括号作为结束。

console.log("PI: " Math.PI);
// SyntaxError: missing ) after argument list

你可以正确的调用 log 函数通过加上 ”+“ 操作符。

console.log("PI: " + Math.PI);
// "PI: 3.141592653589793"

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