Issues related to use of el-AutoComplete

• El-autocomplete disallows entering Chinese and numbers:

Solution: Bind onInput event and return the corresponding value. Note: This method works with element2.4.11 (the most recent version). 2.4.11 this refers to the input element, but not 2.3.9, where this refers to a div element without the value attribute.

<el-autocomplete oninput="this.value=this.value.replace(/[\u4e00-\u9fa5\d]/g,'');"></el-autocomplete>
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• El-autocomplete Manual blur

<el-autocomplete ref="auto" v-model="input"></el-autocomplete>

this.$refs.auto.close();

this.$refs.auto.$children[0].blur();
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