Javascript - 未捕获的SyntaxError：意外的标识符 [英] Javascript - Uncaught SyntaxError: Unexpected identifier

问题描述

我有一个令人沮丧的时间试图让这个工作，Chrome一直显示一个未捕获的语法错误，但作为javascript的初学者，我不知道在哪里看。任何帮助或指示将不胜感激

I'm having a frustrating time trying to get this to work, Chrome keeps displaying an Uncaught Syntax error, but being a beginner to javascript, I have no idea where to look. Any help or pointers would be appreciated

    function details(user) {
        var fuel = prompt("Would you prefer petrol or diesel?");
        var passengers = prompt("How many passengers will there be?");
        var aircon = prompt("Do you require air-conditioning?");
        var transmission = prompt("Do you want a Manual, Semi-Automatic or Automatic Transmission?");
        var hire = prompt("How long would you like to hire a vehicle for? (Day Hire, Weekend Hire or Weekly Hire)");

        if (fuel == "petrol" && passengers == "2" && aircon = "yes" && transmission == "semi-automatic") {
        result = "Lambourghini Aventador";
    } else {
        result = "some form of SUV"
    }
        if result = "Lambourghini Aventador") {

        if (hire == "Day hire") {
        cost = 2000;
    }
        if (hire == "Weekend hire") {
        cost = 3800;
    }
        if (hire == "Weekly hire") {
        cost = 12000;
    }
}
}

推荐答案

这里有一些问题。
您应该使用 JSLint 这是一个非常好的JavaScript质量保证工具。这将验证您的JavaScript并指出任何明显的问题。

There are a few problems here. You should use JSLint which is a very good JavaScript quality assurance tool. This will validate your JavaScript and point out any apparent problems.

首先：

aircon = "yes"

应该是

aircon == "yes"

其次：

if result = "Lambourghini Aventador")

应

if (result == "Lambourghini Aventador")

第三次

result = "some form of SUV"

应该是

result = "some form of SUV";

第四次

避免使用 == ，而是使用JavaScript标准 ===

refrain from using ==, instead use the JavaScript standard ===

在这篇非常好的Stackoverflow帖子中了解这里的原因！

Read why here in this very good Stackoverflow post!

这篇关于Javascript - 未捕获的SyntaxError：意外的标识符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！