下面代码的输出是
var neteaseArray = [3,4,5]; var neteaseSliceArray = neteaseArray.slice(0, 1); var neteaseConcatArray = neteaseArray.concat("a"); var neteaseSpliceArray = neteaseArray.splice(0, 1); console.log(neteaseArray); console.log(neteaseSliceArray); console.log(neteaseConcatArray); console.log(neteaseSpliceArray);