JavaScript:我收到错误 "Uncaught SyntaxError: Unexpected token { "

Question

使用这段代码，我收到以下错误(Uncaught SyntaxError: Unexpected token {)。错误发生在代码“else”部分后面的“{”。

   var position = $(this).position();
    if (position>=0 && position<6684) {
        var decade = '1970s';
    } else if (position>=6684 && position<16373) {
        var decade = '1980s';
    } else if (position>=16373 && position<25711) {
        var decade = '1990s';
    } else if (position>=25711 && position<37503) {
        var decade = '2000s';
    } else (position>=37503 && position<42125) {
        var decade = '2010s';
    }

Answer 1

您的最后一个 else 包含一个条件，只需将其删除并重试

 var position = $(this).position();
    if (position>=0 && position<6684) {
        var decade = '1970s';
    } else if (position>=6684 && position<16373) {
        var decade = '1980s';
    } else if (position>=16373 && position<25711) {
        var decade = '1990s';
    } else if (position>=25711 && position<37503) {
        var decade = '2000s';
    } else (position>=37503 && position<42125) { //FALSE CONDITION
        var decade = '2010s';
    }

尝试

 var position = $(this).position();
    if (position>=0 && position<6684) {
        var decade = '1970s';
    } else if (position>=6684 && position<16373) {
        var decade = '1980s';
    } else if (position>=16373 && position<25711) {
        var decade = '1990s';
    } else if (position>=25711 && position<37503) {
        var decade = '2000s';
    } else{ 
        var decade = '2010s';
    }