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检测类型-isArray
// isArray判断是否为数组 let arr = let arr1 = { name: "张三" } console.log(Array.isArray(arr)); //判断arr是否为数组,返回值:true console.log(Array.isArray(arr1...
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// isArray判断是否为数组 let arr = let arr1 = { name: "张三" } console.log(Array.isArray(arr)); //判断arr是否为数组,返回值:true console.log(Array.isArray(arr1...
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