javascript - 根据值删除本地存储数组对象

Question

说我在本地存储中有这个已保存的 key ，如何删除值为 2 且鞋子 size_of 1 的player_id？

[{"player_id":1,"shoe_size":3},{"player_id":2,"shoe_size":1},{"player_id":2,"shoe_size":2},

获得保存的值后下一步该怎么做？

if(localStorage["player"]){
    player = JSON.parse(localStorage["player"]);
}

Answer 1

您可以使用.filter()

The filter() method creates a new array with all elements that pass the test implemented by the provided function.

player  = player .filter(function( obj ) {
    return !(obj.player_id == 2 && obj.shoe_size == 1);
});

如果你想设置它:

localStorage["player"] = JSON.stringify(player)

var player = [{"player_id":1,"shoe_size":3},{"player_id":2,"shoe_size":1},{"player_id":2,"shoe_size":2}];

player  = player.filter(function(obj) {
    return !(obj.player_id == 2 && obj.shoe_size == 1);
});

document.write(JSON.stringify(player))