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< docs >
-- -
order : 15
title :
zh - CN : 大数据
en - US : Big Data
-- -
# # zh - CN
Select 使用了虚拟滚动技术 ， 因而获得了比 1. x 更好的性能
# # en - US
Select use virtual scroll which get better performance than 1. x
< / docs >
< template >
< h2 > { { options . length } } Items < / h2 >
< a -select
v -model :value ="value"
mode = "multiple"
style = "width: 100%"
placeholder = "Please select"
:options ="options"
/ >
< / template >
< script lang = "ts" >
import { defineComponent , reactive } from 'vue' ;
const options : { value : string ; disabled : boolean } [ ] = [ ] ;
for ( let i = 0 ; i < 100000 ; i ++ ) {
const value = ` ${ i . toString ( 36 ) } ${ i } ` ;
options . push ( {
value ,
disabled : i === 10 ,
} ) ;
}
export default defineComponent ( {
setup ( ) {
const state = reactive ( {
options ,
value : [ 'a10' , 'c12' ] ,
} ) ;
return state ;
} ,
} ) ;
< / script >
