字數計算
2019-12-18
上面的框可以拉長，直接輸入就會顯示字數，不會計算空白及換行，其餘皆計算進去。
程式碼如下
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| <textarea id="str" col="1000" row="30"></textarea> | |
| <div id="res"></div> | |
| <script> | |
| var str = document.getElementById('str'); | |
| var res = document.getElementById('res'); | |
| str.addEventListener('keyup',function(){ | |
| res.innerHTML = str.value.trim().replace(/ /g,'').replace(/\n/g,'').length ; | |
| }) | |
| </script> |