[英]Javascript word count price calculator
Everything works fine, except the problem with a pricing plan selection. 一切正常,除了选择定价计划的问题。 What I want is that whenever user clicks on a specified price (even while the text is already present in textarea), it should immediately update the final Price.
我想要的是,只要用户单击指定的价格(即使文本已经存在于textarea中),它都应立即更新最终价格。 But it won't change at first click.
但是,第一次单击时不会改变。
I should click twice on it instead. 我应该点击两次。 Any one got an idea what's wrong ?
有人知道怎么了吗?
So here how it looks like: 所以这里看起来像:
And here comes the javascript code: JavaScript代码如下:
function __textCalculatorCounter(){
var value = $('#calculateText').val();
var spanWords = $('#calculatedWordsTotal'),
spanChars = $('#calculatedCharsTotal'),
spanPrice = $('#calculatedPriceTotal');
if (value.length == 0) {
spanWords.html(0);
spanChars.html(0);
return;
}
var selectedPricing = $("input[name=calculatePrice]:checked").val();
var wordCount = value.trim().replace(/\s+/gi, ' ').split(' ').length;
var totalChars = value.length;
var totalPrice = (wordCount * parseFloat(Math.round(selectedPricing * 100) / 100));
spanWords.html(wordCount);
spanChars.html(totalChars);
spanPrice.html(totalPrice.toFixed(2));
}
function _initTextCalculator(){
var textblock = $('#calculateText');
textblock.change(__textCalculatorCounter);
textblock.keydown(__textCalculatorCounter);
textblock.keypress(__textCalculatorCounter);
textblock.keyup(__textCalculatorCounter);
textblock.blur(__textCalculatorCounter);
textblock.focus(__textCalculatorCounter);
$('label', '#pricesGroup').click(__textCalculatorCounter);
}
==== UPDATED ==== ====更新====
I don't know why, but it works fine in jsfiddle... it's exactly the same code extracted from html and javascript. 我不知道为什么,但是它在jsfiddle中可以正常工作...它是从html和javascript中提取的完全相同的代码。
So, since no one had an answer, I post mine, which solved the issue. 因此,由于没有人回答,我发布了我的答案,该问题得以解决。
The problem is in Twitter's Bootstrap 3 radio button styles which is actually common issue when using along with javascript. 问题出在Twitter的Bootstrap 3单选按钮样式中,当与javascript一起使用时,这实际上是常见问题。
I've changed a click handler for radio buttons: 我更改了单选按钮的点击处理程序:
function _initTextCalculator(){
var textblock = $('#calculateText');
textblock.change(_textCalculatorTrigger);
textblock.keydown(_textCalculatorTrigger);
textblock.keypress(_textCalculatorTrigger);
textblock.keyup(_textCalculatorTrigger);
textblock.blur(_textCalculatorTrigger);
textblock.focus(_textCalculatorTrigger);
// Fixing bootstrap 3 radio buttons
$("#pricesGroup label").on('click', function(){
// Once clicked, mark current radio as checked
$('input:radio', this).prop("checked", true);
// Then call a function to calculate the price
_textCalculatorTrigger();
});
}
As it already commented, it assigns a property "checked" to radio button first once it's parent label
tag is clicked, and then it calls a function to calculate the price. 正如已经注释过的那样,一旦其父
label
标签被单击,它将首先为单选按钮分配一个“选中”属性,然后调用一个函数来计算价格。
Thanks to everyone 谢谢大家
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