[英]How to unshift an Array in another Array JS?
有沒有辦法在另一個數組中取消移動數組?
我有一個數組數組
[["Sunny", "Hot", "High", "Weak", "No"],
["Sunny", "Hot", "High", "Strong", "No"]]
我想要完成的就是添加另一個數組
["Outlook", "Temperature", "Humidity", "Wind", "Play-ball"]
在 Array-of-Arrays 之上,以便最終的 Array 看起來像這樣
[["Outlook", "Temperature", "Humidity", "Wind", "Play-ball"],
["Sunny", "Hot", "High", "Weak", "No"],
["Sunny", "Hot", "High", "Strong", "No"]]
unshift() 只在 Array-of-Arrays 之上添加一個空數組,所以我猜它只適用於單個數組中的項目,是否有一個 unshift 等效的數組?
您可以將數組取消移動為項目。
var array = [["Sunny", "Hot", "High", "Weak", "No"], ["Sunny", "Hot", "High", "Strong", "No"]], another = ["Outlook", "Temperature", "Humidity", "Wind", "Play-ball"]; array.unshift(another); console.log(array);
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