关于如何修剪数组中的最后一个字符：trim-jquery

How to trim off last character in an Array - jQuery

所以今天我有一个数组，里面有几个字符串，都以，例如：爵士乐，拉丁语，恍惚，

我需要从数组的最后一个元素中删除。搜索stackoverflow时，我找到了几个答案，并尝试了下面的代码，但到目前为止还没有运气：(

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// How I'm generating my Array (from checked checkboxes in a Modal)
role_Actor = [];
$('.simplemodal-data input:checked').each(function() {
role_Actor.push($(this).val());
});

// roleArray = my Array
var lastEl = roleArray.pop();
lastEl.substring(0, lastEl.length - 1);
roleArray.push($.trim(lastEl));

// My function that displays my strings on the page
$.each(roleArray, function(index, item) {
$('.'+rowName+' p').append(item+', ');
});

// Example of the Array:
Adult Animated, Behind the Scenes, Documentary,

谢谢你看！

谢谢@Claire Anthony！为修复！！！！

相关讨论

编辑现在他的问题已经被编辑以反映现实，这不再有效…=)

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// make an array
var a = ['one,two,three,', 'four,five,six,'];

// get the last element
var lastEl = a[a.length -1];

// knock off the last character
var trimmedLast = lastEl.substring(0, lastEl.length - 1);

alert(trimmedLast);

// as a function that will return said
// please note you should write error handling and so
// on in here to handle empty or non-array inputs.
function lastArrayThing(myArray) {
var lastEl = a[a.length -1];
return lastEl.substring(0, lastEl.length - 1);
}

alert( lastArrayThing(a) );

实际代码：http://jsfiddle.net/sb25j/

试试这个：

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$.each(arr, function(i, val) {
arr[i] = val.substring(0, val.length - 1);
});