Demo Fiddle

Question

我有一个像下面的矩阵aray

var pricemultiarray = {
    "Coast-to-Coast": {
        "1": ["10", "20", "30", "50", "60"],
            "2": ["15", "30", "40", "60", "80"],
            "3": ["20", "40", "50", "70", "100"],
            "4": ["20", "40", "50", "70", "100"],
            "5": ["20", "45", "60", "95", "115"],
            "6": ["20", "45", "60", "95", "115"],
            "7": ["25", "55", "75", "105", "125"]
    },

        "mid-states": {
        "1": ["10", "20", "30", "45", "55"],
            "2": ["15", "30", "40", "45", "70"],
            "3": ["20", "40", "50", "60", "95"],
            "4": ["20", "40", "50", "60", "95"],
            "5": ["20", "45", "60", "90", "110"],
            "6": ["20", "45", "60", "90", "110"],
            "7": ["25", "55", "75", "105", "125"]
    },


        "In-State": {
        "1": ["10", "15", "20", "45", "50"],
            "2": ["10", "20", "25", "50", "60"],
            "3": ["10", "25", "35", "70", "80"],
            "4": ["10", "25", "35", "70", "80"],
            "5": ["10", "25", "30", "85", "95"],
            "6": ["10", "25", "30", "85", "95"],
            "7": ["25", "55", "75", "105", "125"]
    }


};

在此我需要从数组中获取特定值，如

1 Coast-to-Coast - ＆gt; 1 - ＆gt; 3

那么从数组中获取上述值的语法是什么呢？请建议

Answer 1

试试这个

pricemultiarray["Coast-to-Coast"]["1"]将返回["10","20","30","50","60"]和 pricemultiarray["Coast-to-Coast"]["1"][0]将返回"10"

Answer 2

像这样

for ( var i = 1; i <= 3; i++ ) {
alert(pricemultiarray["Coast-to-Coast"][i]);
//console.log(pricemultiarray["Coast-to-Coast"][i]);
}

Demo Fiddle

Answer 3

好的，谢谢你的帮助，我使用下面的代码

var coast =（document.getElementById（＆＃34; coast＆＃34;）。value）; var boxsize = （的document.getElementById（＆＃34; boxsize＆＃34）的值。）; var day = （的document.getElementById（＆＃34;天＆＃34;。）值）; 警报（pricemultiarray [海岸] [boxsize] [天]）;

现在它适用于我

非常感谢

如何从javascript关联数组中获取特定值

3 个答案:

Demo Fiddle