SyntaxError: identifier starts immediately after numeric literal

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Message

SyntaxError: identifier starts immediately after numeric literal (Firefox)
SyntaxError: Unexpected number (Chrome)

Error type

SyntaxError

What went wrong?

变量名叫identifiers,它符合某些规则,而你打破了这些规则!

一个JavaScript标识符必须以字母开头,下划线(_)或美元符号($)。他们不能以数字开头。只有后续字符可以是数字(0-9)。

Examples

Variable names starting with numeric literals

Variable names can't start with numbers in JavaScript. The following fails:

var 1life = 'foo';
// SyntaxError: identifier starts immediately after numeric literal

var foo = 1life;
// SyntaxError: identifier starts immediately after numeric literal

You will need to rename your variable to avoid the leading number.

var life1 = 'foo';
var foo = life1;

See also

文档标签和贡献者

此页面的贡献者: AlanStewart6, fanxiaobin1992
最后编辑者: AlanStewart6,