如何创建多维数组 [英] How to create multidimensional array

问题描述

有人能给我一个带有多维输入数组的JavaScript样本/示例吗?希望您能有所帮助，因为我还是JavaScript的新手.

Can anyone give me a sample/example of JavaScript with a multidimensional array of inputs? Hope you could help because I'm still new to the JavaScript.

就像您输入2行2列一样，其输出将是2行输入和2列输入.

Like when you input 2 rows and 2 columns the output of it will be 2 rows of input and 2 columns of input.

赞:

[input][input]                
[input][input]

推荐答案

var numeric = [
    ['input1','input2'],
    ['input3','input4']
];
numeric[0][0] == 'input1';
numeric[0][1] == 'input2';
numeric[1][0] == 'input3';
numeric[1][1] == 'input4';

var obj = {
    'row1' : {
        'key1' : 'input1',
        'key2' : 'input2'
    },
    'row2' : {
        'key3' : 'input3',
        'key4' : 'input4'
    }
};
obj.row1.key1 == 'input1';
obj.row1.key2 == 'input2';
obj.row2.key1 == 'input3';
obj.row2.key2 == 'input4';

var mixed = {
    'row1' : ['input1', 'inpu2'],
    'row2' : ['input3', 'input4']
};
mixed.row1[0] == 'input1';
mixed.row1[1] == 'input2';
mixed.row2[0] == 'input3';
mixed.row2[1] == 'input4';

http://jsfiddle.net/z4Un3/

如果您想存储DOM元素:

And if you're wanting to store DOM elements:

var inputs = [
    [
        document.createElement('input'),
        document.createElement('input')
    ],
    [
        document.createElement('input'),
        document.createElement('input')
    ]
];
inputs[0][0].id = 'input1';
inputs[0][1].id = 'input2';
inputs[1][0].id = 'input3';
inputs[1][1].id = 'input4';

在附加元素之前，不完全确定上面的用法是否有用.以下可能是您正在寻找的更多内容:

Not real sure how useful the above is until you attach the elements. The below may be more what you're looking for:

<input text="text" id="input5"/>
<input text="text" id="input6"/>
<input text="text" id="input7"/>
<input text="text" id="input8"/>    
var els = [
    [
        document.getElementById('input5'),
        document.getElementById('input6')
    ],
    [
        document.getElementById('input7'),
        document.getElementById('input8')
    ]
];    
els[0][0].id = 'input5';
els[0][1].id = 'input6';
els[1][0].id = 'input7';
els[1][1].id = 'input8';

http://jsfiddle.net/z4Un3/3/

或者，也许是这样:

<input text="text" value="4" id="input5"/>
<input text="text" value="4" id="input6"/>
<br/>
<input text="text" value="2" id="input7"/>
<input text="text" value="4" id="input8"/>

var els = [
    [
        document.getElementById('input5'),
        document.getElementById('input6')
    ],
    [
        document.getElementById('input7'),
        document.getElementById('input8')
    ]
];

var result = [];

for (var i = 0; i < els.length; i++) {
    result[result.length] = els[0][i].value - els[1][i].value;
}

哪个给:

[2, 0]

在控制台中.如果要将其输出为文本，可以单击result.join(' ');，这样将为您提供2 0.

In the console. If you want to output that to text, you can result.join(' ');, which would give you 2 0.

http://jsfiddle.net/z4Un3/6/

编辑

还有一个可行的演示:

<input text="text" value="4" id="input5"/>
<input text="text" value="4" id="input6"/>
<br/>
<input text="text" value="2" id="input7"/>
<input text="text" value="4" id="input8"/>
<br/>
<input type="button" value="Add" onclick="add()"/>

// This would just go in a script block in the head
function add() {
    var els = [
        [
            document.getElementById('input5'),
            document.getElementById('input6')
        ],
        [
            document.getElementById('input7'),
            document.getElementById('input8')
        ]
    ];

    var result = [];

    for (var i = 0; i < els.length; i++) {
        result[result.length] = parseInt(els[0][i].value) - parseInt(els[1][i].value);
    }

    alert(result.join(' '));
}

http://jsfiddle.net/z4Un3/8/

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