getElementById('pcode') 许多元素都已编号

发布于 2024-10-09 17:44:05 字数 395 浏览 3 评论 0原文

我有一个文档，当单击链接时，该表的每一行中都会显示一个结果表，其中有一个带有 SPAN 标记的 TD 元素，其中有一个 id，从 2 开始，最多可以递增到 400（即id=“pcode2”）。

我需要获取其内部 HTML 值并将它们写入 Javascript 函数？、数组？细绳？后跟一个逗号，用于地图的另一个 Javascript 函数。

数据经过预先排序，通过单击链接调用地图来获取路线。 span id 永远不会超过 400。

最终目的地需要如下所示。

var via = ("pcode2," "pcode3,", "pcode4");

其中 pcode 等于 SPAN 的内部 HTML 值（邮政编码）。

谢谢

贾斯汀

原文

I have a a document that when an link is clicked a table of results is displayed within each row of this table there is a TD element with a SPAN tag, inside of this is an id which starts at 2 and can increment up to 400 (i.e. id="pcode2").

I have a need to get the inner HTML values of this and write them into a Javascript function?, array? string? followed by a comma to use on another Javascript function for a map.

The data is pre sorted and the map is called by clicking a link to get the route. the span id's will never reach more than 400.

the end destination needs to look like this..

var via = ("pcode2," "pcode3,", "pcode4");

Where pcode is equal to the innerHTML value of the SPAN which is a postcode.

Thanks

Justin

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探春 2024-10-16 17:44:05

你的意思是这样的：

var values = [];

for(var i = 2; i <= 400; i++) {
    var element = document.getElementById('pcode' + i);
    if(element === null) {
        break;
    }
    values.push(element.innerHTML); // or element.innerHTML + ','
}

？

如果没有，你应该澄清我们的问题。

但不确定为什么需要逗号。如果您想稍后连接这些值，只需使用 join()：

var str = values.join(',');

示例：

var values = ['a','b','c'];
var str = values.join(',');
// gives "a,b,c"

更新： 来自文档，我认为你必须这样做（假设 map 全局可用）：

function GetRoute() { 
    var from = document.getElementById('inpAddr').value; 
    var locations = [from]; 
    for(var i = 2; i <= 400; i++) { 
        var element = document.getElementById('pcode' + i); 
        if(element === null) { break; } 
        locations.push(element.innerHTML); 
    } 
    var options = new VERouteOptions(); 
    options.DrawRoute = true; 
    map.GetDirections(locations,options); 
}

请注意 locations 只是一个数组。在原始代码中，您创建了一个嵌套数组。而且您似乎不需要尾随逗号，只需要一系列位置。

You mean something like:

var values = [];

for(var i = 2; i <= 400; i++) {
    var element = document.getElementById('pcode' + i);
    if(element === null) {
        break;
    }
    values.push(element.innerHTML); // or element.innerHTML + ','
}

If not, you should clarify our question.

Not sure why you need the comma though. If you want to concatenate the values later, you can just use join():

var str = values.join(',');

Example:

var values = ['a','b','c'];
var str = values.join(',');
// gives "a,b,c"

Update: From the documentation, I think you have to do this (assuming map is globally available):

function GetRoute() { 
    var from = document.getElementById('inpAddr').value; 
    var locations = [from]; 
    for(var i = 2; i <= 400; i++) { 
        var element = document.getElementById('pcode' + i); 
        if(element === null) { break; } 
        locations.push(element.innerHTML); 
    } 
    var options = new VERouteOptions(); 
    options.DrawRoute = true; 
    map.GetDirections(locations,options); 
}

Note that locations is just a single array. In your original code, you create a nested array. And you don't seem to need a trailing comma, just an array of locations.

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