The textarea controls the number of bytes of the input character
- 2020-03-30 01:06:26
- OfStack
Controlled by number of characters:
<textarea name="gbContent" style="width: 500px; height: 200px;"
onkeyup="if(this.value.length>2000) this.value=this.value.substr(0,2000)"
onkeydown="if(this.value.length>2000) this.value=this.value.substr(0,2000)"
onblur="if(this.value.length>2000) this.value=this.value.substr(0,2000)"
onpropertychange= "if(this.value.length>2000) this.value=this.value.substr(0,2000)"></textarea>
Control by bytes:
<textarea cols="50" id="description" name="userModel.description" rows="5"
onkeydown="key1=this.value;value1 = key1.replace(/[u4e00-u9fa5]/g,' ');if(value1.length>500) this.value=this.value.substr(0,500)"
onkeyup="key1=this.value;value1 = key1.replace(/[u4e00-u9fa5]/g,' ');if(value1.length>500) this.value=this.value.substr(0,500)"
onblur="key1=this.value;value1 = key1.replace(/[u4e00-u9fa5]/g,' ');if(value1.length>500) this.value=this.value.substr(0,500)"
onchange="key1=this.value;value1 = key1.replace(/[u4e00-u9fa5]/g,' ');if(value1.length>500) this.value=this.value.substr(0,500)"></textarea>