原型有没有冲突选项像jQuery？

Question

我试过Google搜索，但它只有与jQuery noconflict选项。

我会使用这个，但我的网站是非常jQuery沉重，它将需要一个白色，以及我添加的原型代码可能是暂时的，只有几行。

如果没有原型没有冲突选项如何转换下面的代码，我的javascript代码是有限的？

// JavaScript Document 
// calculate price based on quantity 
function changeQty(change){ 
var currentQty = parseInt($F('quant')) // Where quant is the id of your quantity input field. Gets value of currentQty field 

switch (change) { 
    case 'add': 
     currentQty += 1 
     $('quant').value = currentQty 
     calculate() 
     break 
    case 'subtract': 
     if (currentQty > 1) { // only subtract if qty is greater than zero 
      currentQty -= 1 
      $('quant').value = currentQty 
      calculate() 
     } 
     break 
    case 'field': 
     if (currentQty > 0) { 
      window.setTimeout('calculate()', 500) 
     } 
     break 
} 
} 
function calculate(){ 
var currentQty = parseInt($F('quant')) // Where quant is the id of your quantity input field. Gets value of currentQty field  
var jsnormalprice = $F('jsnormalprice') // Where jsnormalprice is the id of your hidden base price field. Gets value of base_price field  
var jsspecialprice = $F('jsspecialprice') // Where is the id of your hidden base price field. Gets value of base_price field 

if (currentQty > 0) { // Don't want price to display if zero if customer zeros out quantity 
    var new_jsnormalprice = jsnormalprice * currentQty // Calculate the price.  
    var new_jsnormalprice = new_jsnormalprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down. 

    var new_jsspecialprice = jsspecialprice * currentQty // Calculate the price.   
    var new_jsspecialprice = new_jsspecialprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down. 

} else { // set price back to original price 
    new_jsnormalprice = jsnormalprice 
    new_jsspecialprice = jsspecialprice 
} 

$('jsnormalpriceshow').update(new_jsnormalprice) // Where jsnormalpriceshow is the id of your span for the echoed product price 
$('jsspecialpriceshow').update(new_jsspecialprice) // Where jsspecialpriceshow is the id of your span for the echoed product price 

} 

Answer 1

原型没有一个没有冲突模式..

我已经转换你的代码，但我可能已经错过了一个点或两个..

一般来说，$('elemID') =>$('#elemID')和$F('elemID') =>$('#elemID').val()就是我所做的..

// JavaScript Document 
// calculate price based on quantity 
function changeQty(change){ 
var currentQty = parseInt($('#quant').val()) // Where quant is the id of your quantity input field. Gets value of currentQty field 

switch (change) { 
    case 'add': 
     currentQty += 1 
     $('#quant').val(currentQty) 
     calculate() 
     break 
    case 'subtract': 
     if (currentQty > 1) { // only subtract if qty is greater than zero 
      currentQty -= 1 
      $('#quant').val(currentQty) 
      calculate() 
     } 
     break 
    case 'field': 
     if (currentQty > 0) { 
      window.setTimeout('calculate()', 500) 
     } 
     break 
} 
} 
function calculate(){ 
var currentQty = parseInt($('#quant').val()) // Where quant is the id of your quantity input field. Gets value of currentQty field  
var jsnormalprice = $('#jsnormalprice').val() // Where jsnormalprice is the id of your hidden base price field. Gets value of base_price field  
var jsspecialprice = $('#jsspecialprice').val() // Where is the id of your hidden base price field. Gets value of base_price field 

if (currentQty > 0) { // Don't want price to display if zero if customer zeros out quantity 
    var new_jsnormalprice = jsnormalprice * currentQty // Calculate the price.  
    var new_jsnormalprice = new_jsnormalprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down. 

    var new_jsspecialprice = jsspecialprice * currentQty // Calculate the price.   
    var new_jsspecialprice = new_jsspecialprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down. 

} else { // set price back to original price 
    new_jsnormalprice = jsnormalprice 
    new_jsspecialprice = jsspecialprice 
} 

$('#jsnormalpriceshow').html(new_jsnormalprice) // Where jsnormalpriceshow is the id of your span for the echoed product price 
$('#jsspecialpriceshow').html(new_jsspecialprice) // Where jsspecialpriceshow is the id of your span for the echoed product price 

} 

Answer 2

原型没有没有冲突模式。

Answer 3

不幸的是，原型没有没有冲突模式。

幸运的是，您不需要使用Prototype来选择DOM中的元素。 jQuery对此很好。

而不是

$F('quant') 
$('quant').value = currentQty 
$F('jsnormalprice') 
$('jsnormalpriceshow').update(new_jsnormalprice) 

您可以使用jQuery的等价物：

$("#quant").val() 
$("#quant").val(currentQty) 
$("#jsnormalprice").val() 
$("#jsnormalpriceshow").text(new_jsnormalprice) 

---

而且，请不要在字符串评估代码。更改

window.setTimeout('calculate()', 500)  

到这样做的更自然的方式：

window.setTimeout(calculate, 500)