为什么语法分析器不会在回车后在var中插入分号，但是在函数t中却插入了返回？
var a = 5
+
5
console.log(a); //results 10
function t(){
return
5
}
console.log(t()); //results undefined
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为什么语法分析器不会在回车后在var中插入分号，但是在函数t中却插入了返回？
var a = 5
+
5
console.log(a); //results 10
function t(){
return
5
}
console.log(t()); //results undefined
Expressions in JavaScript do not end at the end of the line. Thats where semicolons are important.
returnis a complete statement on its own and has automatic semicolon insertion.