var arr= ['js','jsp','dd'];
var findstr='j';
let list = arr.filter((item)=>{
return item.indexOf(findstr) === 0
})
},
js查找数组以某一变量开头的索引
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var arr= ['js','jsp','dd'];
var findstr='j';
let list = arr.filter((item)=>{
return item.indexOf(findstr) === 0
})
},
js查找数组以某一变量开头的索引
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