jQuery将元素ID传递到jquery语句中? [英] jQuery passing element ID into jquery statement?

问题描述

我想将元素的ID传递给一个函数，然后该函数调用jQuery.但是，我对如何实际获取ID变量并将其与jQuery语句中的其他文本连接起来感到困惑.例如，这将返回错误:

I'd like to pass the ID of an element into a function which then calls jQuery. However, I'm stumped as to how to actually take the ID variable and concatenate it with other text inside the jQuery statement. For example, this returns an error:

myFunction("#myObject");

function myFunction(IDofObject){

    $("'"+IDofObject+" img'").doSomething...

}

我想对'#myObject img'进行处理，但是无法在语句中使用.

I'd like to do something with '#myObject img' but can't get that to work inside the statement.

推荐答案

不要将参数用引号引起来:

Don't wrap the parameter in quotes:

function myFunction(IDofObject) {
    $( IDofObject + " img" ).doSomething();
}

此外，您可能需要考虑在函数内部添加哈希字符，以便可以向其传递实际的ID，而不是选择器.

Also, you may want to consider adding the hash character inside the function so you can pass it the actual id, not a selector.

myFunction( $('.classSelector :first').attr('id') );

function myFunction(IDofObject) {
    $( "#" + IDofObject + " img" ).doSomething();
}

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