我的警报框不起作用

Question

For the 2 alerts (they are the same) "alert("The pizzas you ordered are: " +fullOrder)" They don't actually run properly. 对于2个警报（它们是相同的）“ alert（“您订购的披萨是：” + fullOrder）“它们实际上无法正常运行。 Everything runs fine until I get to the alerts, then they just don't show up. 一切正常，直到我收到警报，然后它们才出现。 (They are linked to the array, so I think it might be something to do with that. （它们链接到数组，因此我认为可能与此有关。

So, does anyone know what I've done wrong? 那么，有人知道我做错了吗？ I have a faint idea of what needs to be done but don't know how to go about it. 我对需要做的事情有一个模糊的想法，但是不知道该怎么做。 The local variable in function order() var fullOrder needs to go into the other function calculate(). 函数order（）var fullOrder中的局部变量需要进入另一个函数calculate（）。 Please help!! 请帮忙！！

 <html> <script> //Global variables var totalNumber = 0; // Total number of pizzas ordered var pizzaPrice = 9.50; // price of plain pizza var pizzaPriceGourmet = 15.50; //price of gourmet pizza var orderTotalPrice = 0; // total cost of order var pizzaDeliveryPrice = 5; // price for pizza delivery var FullOrder = 0; // number of pizza's ordered var customerName = prompt("Please enter your name.") //prompt to get the customers name var customerNumber = prompt("Please enter your phone number.") //prompt to get the customers number { if ( isNaN(customerNumber) || customerNumber < 8400000 || customerNumber > 999999999 ) { // Checks if customerNumber is greater than 9999999 alert("Please enter a 7-digit telephone number between 8600000 - 9999999 Select the 'cancel order' button and enter a valid telephone number!"); // asks customer to enter a valid telephone number } else alert("Lets continue!"); // Continues to main website } order();//call order calculate(totalGourmet,totalPlain);// while calling function order() { var pizza = new Array() pizza[0] = document.form.hawaiian.value //allocates type of pizza in array pizza[0] = Number(pizza[0]) //converts to number value pizza[1] = document.form.cheese.value //allocates type of pizza in array pizza[1] = Number(pizza[1]) //converts to number value pizza[2] = document.form.veggie.value //allocates type of pizza in array pizza[2] = Number(pizza[2]) //converts to number value pizza[3] = document.form.supreme.value //allocates type of pizza in array pizza[3] = Number(pizza[3]) //converts to number value pizza[4] = document.form.pepperoni.value //allocates type of pizza in array pizza[4] = Number(pizza[4]) //converts to number value pizza[5] = document.form.meatlovers.value //allocates type of pizza in array pizza[5] = Number(pizza[5]) //converts to number value pizza[6] = document.form.chicken.value //allocates type of pizza in array pizza[6] = Number(pizza[6]) //converts to number value pizza[7] = document.form.prawn.value //allocates type of pizza in array pizza[7] = Number(pizza[7]) //converts to number value totalPlain = pizza[0] + pizza[1] + pizza[2] + pizza[3] + pizza[4]; totalGourmet = pizza[5] + pizza[6] + pizza[7]; var totalNumber = totalGourmet + totalPlain var fullOrder = alert("You have ordered: " + "\\n" + <----- I NEED THIS "Hawaiian Pizza ($9.50): " + pizza [0] + "\\n" + "Cheese Pizza ($9.50): " + pizza [1] + "\\n" + "Veggie Pizza ($9.50): " + pizza [2] + "\\n" + "Supreme Pizza ($9.50): " + pizza [3] + "\\n" + "Pepperoni Pizza ($9.50): " + pizza [4] + "\\n" + "Meat-Lovers Pizza ($15.50): " + pizza [5] + "\\n" + "Chicken Pizza ($15.50): " + pizza [6] + "\\n" + "Prawn Pizza ($15.50): " + pizza [7]); if (totalNumber >12) { // Limit for total amount of Pizzas ordered alert("There is a limit of 12 pizzas per order. - PRESS 'Prevent this page from creating additional dialogs' THEN PRESS 'cancel order' AND THEN RE-ORDER! - Current total is: " +totalNumber); } else alert("Total number of pizzas ordered: " + totalNumber); //Total amount of pizzas ordered calculate(totalGourmet,totalPlain) //Begins calculation function } function calculate(totalGourmet,totalPlain) //Function for the cost of the order { orderTotalPrice = (totalPlain*pizzaPrice + totalGourmet*pizzaPriceGourmet); //order total+ amount of pizzas ordered * pizza price var pizzaDelivery = prompt('Would you like your order to be delivered for $5, or for pick up? -Type in "1" for delivery, and "0" for pickup.') //asks if you want your order to be delivered or pickup orderTotalPrice = (orderTotalPrice + (pizzaDelivery*pizzaDeliveryPrice)); // calculates the total cost with/without the delivery cost alert("Total cost of pizzas is: $" + orderTotalPrice.toFixed(2) ); //Display order cost as "$"0.00 (2 decimal points) if (pizzaDelivery == '1'){ var response = prompt("Please enter your address: ") alert("Your pizza should be delivered within the next 25 minutes, to this address: " +response) alert("Thank you for ordering with Pete's Pizzas " +customerName) alert("If anything goes wrong we will contact you on your number: " +customerNumber) alert("The pizzas you ordered are: " +fullOrder) <----TO BE HERE alert("Your order details are: " +customerName +"\\n" +customerNumber +"\\n" +response) alert("To exit, just click 'ok' and then close down the program!") } else if (pizzaDelivery == '0'){ alert("Your order will be ready for pickup in 15 minutes!") alert("Thank you for ordering with Pete's Pizzas " +customerName) alert("If anything goes wrong we will contact you on your number: " +customerNumber) alert("The pizzas you ordered are: " +fullOrder) <----TO BE HERE alert("Your order details are: " +customerName +"\\n" +customerNumber) alert("To exit, just click 'ok' and then close down the program!") } } </script> <body> <h1> Welcome to Pete's Pizza! </h1> <p> Please follow the prompts to place your order. </p> <h2> Menu: </h2> <h3>($9.50) Hawaiian, Cheese, Veggie, supreme, pepperoni.</h3> <h3>($15.50) meat-lovers, chicken, prawn. </h3> <p><b>BE AWARE</b> that there is a $5 charge for deliveries. </p> <p> (Please note : Maximum 12 pizzas per Order ) </p> <form name ="form"> <input type="text" name= "hawaiian" > Hawaiian Pizza <br> <input type="text" name= "cheese" > Cheese Pizza <br> <input type="text" name= "veggie" > Veggie Pizza <br> <input type="text" name= "supreme" > Supreme Pizza <br> <input type="text" name= "pepperoni" > Pepperoni Pizza <br> <input type="text" name= "meatlovers" > MeatLovers Pizza <br> <input type="text" name= "chicken" > Chicken Pizza <br> <input type="text" name= "prawn" > Prawn Pizza <br> <input type="button" value="order now" onClick="order()"> <input type="button" value="cancel order" onClick="window.location.reload()"> </form> <i> If you need to cancel the order press the 'Prevent this page from creating additional dialogs' button, then press the "cancel order" button. (This will take you back to the begging of the program.) </i> </body> </html>

Answer 1

As already mentioned by @Weedoze, you've got some syntax errors in your code. 正如@Weedoze已经提到的那样，您的代码中存在一些语法错误。 Solving them just fixed the issue. 解决它们只是解决了这个问题。 You may check the running code here . 您可以在此处检查运行代码。 To be more precise, there are several usages of this line: 更准确地说，此行有几种用法：

 <----- I NEED THIS

To prevent syntax errors in future builds, you may use a proper IDE or just a texteditor including syntax highlighting. 为了防止将来的版本中出现语法错误，您可以使用适当的IDE或仅使用文本编辑器（包括语法突出显示）。

Answer 2

Commenting on javascript and html is different. 对javascript和html的评论是不同的。

 <html> <script> //Global variables var totalNumber = 0; // Total number of pizzas ordered var pizzaPrice = 9.50; // price of plain pizza var pizzaPriceGourmet = 15.50; //price of gourmet pizza var orderTotalPrice = 0; // total cost of order var pizzaDeliveryPrice = 5; // price for pizza delivery var FullOrder = 0; // number of pizza's ordered var customerName = prompt("Please enter your name.") //prompt to get the customers name var customerNumber = prompt("Please enter your phone number.") //prompt to get the customers number { if ( isNaN(customerNumber) || customerNumber < 8400000 || customerNumber > 999999999 ) { // Checks if customerNumber is greater than 9999999 alert("Please enter a 7-digit telephone number between 8600000 - 9999999 Select the 'cancel order' button and enter a valid telephone number!"); // asks customer to enter a valid telephone number } else alert("Lets continue!"); // Continues to main website } order();//call order calculate(totalGourmet,totalPlain);// while calling function order() { var pizza = new Array() pizza[0] = document.form.hawaiian.value //allocates type of pizza in array pizza[0] = Number(pizza[0]) //converts to number value pizza[1] = document.form.cheese.value //allocates type of pizza in array pizza[1] = Number(pizza[1]) //converts to number value pizza[2] = document.form.veggie.value //allocates type of pizza in array pizza[2] = Number(pizza[2]) //converts to number value pizza[3] = document.form.supreme.value //allocates type of pizza in array pizza[3] = Number(pizza[3]) //converts to number value pizza[4] = document.form.pepperoni.value //allocates type of pizza in array pizza[4] = Number(pizza[4]) //converts to number value pizza[5] = document.form.meatlovers.value //allocates type of pizza in array pizza[5] = Number(pizza[5]) //converts to number value pizza[6] = document.form.chicken.value //allocates type of pizza in array pizza[6] = Number(pizza[6]) //converts to number value pizza[7] = document.form.prawn.value //allocates type of pizza in array pizza[7] = Number(pizza[7]) //converts to number value totalPlain = pizza[0] + pizza[1] + pizza[2] + pizza[3] + pizza[4]; totalGourmet = pizza[5] + pizza[6] + pizza[7]; var totalNumber = totalGourmet + totalPlain var fullOrder = alert("You have ordered: " + "\\n" + "Hawaiian Pizza ($9.50): " + pizza [0] + "\\n" + "Cheese Pizza ($9.50): " + pizza [1] + "\\n" + "Veggie Pizza ($9.50): " + pizza [2] + "\\n" + "Supreme Pizza ($9.50): " + pizza [3] + "\\n" + "Pepperoni Pizza ($9.50): " + pizza [4] + "\\n" + "Meat-Lovers Pizza ($15.50): " + pizza [5] + "\\n" + "Chicken Pizza ($15.50): " + pizza [6] + "\\n" + "Prawn Pizza ($15.50): " + pizza [7]); if (totalNumber >12) { // Limit for total amount of Pizzas ordered alert("There is a limit of 12 pizzas per order. - PRESS 'Prevent this page from creating additional dialogs' THEN PRESS 'cancel order' AND THEN RE-ORDER! - Current total is: " +totalNumber); } else alert("Total number of pizzas ordered: " + totalNumber); //Total amount of pizzas ordered calculate(totalGourmet,totalPlain) //Begins calculation function } function calculate(totalGourmet,totalPlain) //Function for the cost of the order { orderTotalPrice = (totalPlain*pizzaPrice + totalGourmet*pizzaPriceGourmet); //order total+ amount of pizzas ordered * pizza price var pizzaDelivery = prompt('Would you like your order to be delivered for $5, or for pick up? -Type in "1" for delivery, and "0" for pickup.') //asks if you want your order to be delivered or pickup orderTotalPrice = (orderTotalPrice + (pizzaDelivery*pizzaDeliveryPrice)); // calculates the total cost with/without the delivery cost alert("Total cost of pizzas is: $" + orderTotalPrice.toFixed(2) ); //Display order cost as "$"0.00 (2 decimal points) if (pizzaDelivery == '1'){ var response = prompt("Please enter your address: ") alert("Your pizza should be delivered within the next 25 minutes, to this address: " +response) alert("Thank you for ordering with Pete's Pizzas " +customerName) alert("If anything goes wrong we will contact you on your number: " +customerNumber) alert("The pizzas you ordered are: " +fullOrder) alert("Your order details are: " +customerName +"\\n" +customerNumber +"\\n" +response) alert("To exit, just click 'ok' and then close down the program!") } else if (pizzaDelivery == '0'){ alert("Your order will be ready for pickup in 15 minutes!") alert("Thank you for ordering with Pete's Pizzas " +customerName) alert("If anything goes wrong we will contact you on your number: " +customerNumber) alert("The pizzas you ordered are: " +fullOrder); alert("Your order details are: " +customerName +"\\n" +customerNumber) alert("To exit, just click 'ok' and then close down the program!") } } </script> <body> <h1> Welcome to Pete's Pizza! </h1> <p> Please follow the prompts to place your order. </p> <h2> Menu: </h2> <h3>($9.50) Hawaiian, Cheese, Veggie, supreme, pepperoni.</h3> <h3>($15.50) meat-lovers, chicken, prawn. </h3> <p><b>BE AWARE</b> that there is a $5 charge for deliveries. </p> <p> (Please note : Maximum 12 pizzas per Order ) </p> <form name ="form"> <input type="text" name= "hawaiian" > Hawaiian Pizza <br> <input type="text" name= "cheese" > Cheese Pizza <br> <input type="text" name= "veggie" > Veggie Pizza <br> <input type="text" name= "supreme" > Supreme Pizza <br> <input type="text" name= "pepperoni" > Pepperoni Pizza <br> <input type="text" name= "meatlovers" > MeatLovers Pizza <br> <input type="text" name= "chicken" > Chicken Pizza <br> <input type="text" name= "prawn" > Prawn Pizza <br> <input type="button" value="order now" onClick="order()"> <input type="button" value="cancel order" onClick="window.location.reload()"> </form> <i> If you need to cancel the order press the 'Prevent this page from creating additional dialogs' button, then press the "cancel order" button. (This will take you back to the begging of the program.) </i> </body> </html>

我的警报框不起作用

问题描述

2 个解决方案

解决方案1
0 2017-05-08 10:52:25

解决方案2
0 2017-05-08 10:54:36

我的警报框不起作用

问题描述

2 个解决方案

解决方案1 0 2017-05-08 10:52:25

解决方案2 0 2017-05-08 10:54:36

解决方案1
0 2017-05-08 10:52:25

解决方案2
0 2017-05-08 10:54:36