使用jQuery计算字符/短信 [英] Count characters/sms using jQuery
问题描述
我使用 NobleCount 和以下代码计算字符:
I count characters using NobleCount and the following code:
$('#message').NobleCount('#messageInfo',{
max_chars: getMaxChars(),
on_negative: function(t_obj, char_area, c_settings, char_rem){
}
});
我想要一个像计算短信的功能,如果达到限制,接下来的160个字符是第二个短信等。我可以使用像on_update,on_positive,on_negative和block_negative这样的参数。
I want a feature like counting SMS, if the limit is reached the next 160 chars are for the second sms and so on. I can use parameters like on_update, on_positive, on_negative and block_negative.
我尝试使用modulo但是它不起作用。有什么想法?
I tried something using modulo but it does not work. Any ideas?
推荐答案
首先,字符计数非常简单。您只需要在字符串上使用 length
属性。要计算所需的SMS消息数量,您需要除以160并向上舍入(因为161个字符需要2条消息)。你的代码可能看起来像这样:
Firstly, character counting is very easy. You just need to use the length
property on a string. To count the number of SMS messages needed, you'll need to divide by 160 and round up (because 161 characters requires 2 messages). Your code should probably look something like this:
HTML:
<textarea name="message" value="" id="message"></textarea>
<p>
<span id="remaining">160 characters remaining</span>
<span id="messages">1 message(s)</span>
</p>
jQuery:
$(document).ready(function(){
var $remaining = $('#remaining'),
$messages = $remaining.next();
$('#message').keyup(function(){
var chars = this.value.length,
messages = Math.ceil(chars / 160),
remaining = messages * 160 - (chars % (messages * 160) || messages * 160);
$remaining.text(remaining + ' characters remaining');
$messages.text(messages + ' message(s)');
});
});
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