Prototype有没有像jQuery这样的冲突选项吗?

时间:2011-09-26 13:27:07

标签: javascript prototypejs

我尝试了谷歌搜索,但它只提出了jQuery noconflict选项。

我会使用这个,但我的网站非常jQuery,它需要相当白,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我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

}

3 个答案:

答案 0 :(得分:3)

Prototype没有无冲突模式..

我已经转换了你的代码,但我可能错过了一两个......

通常,$('elemID') => $('#elemID')$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

}

答案 1 :(得分:1)

Prototype没有无冲突模式。

答案 2 :(得分:1)

不幸的是,原型没有冲突模式。

幸运的是,您不需要使用Prototype来选择DOM中的元素。 jQuery非常适用于此。

而不是

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

您可以使用jQuery等价物:

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

而且,请不要评估字符串中的代码。变化

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

采用更自然的方式:

window.setTimeout(calculate, 500)