How can I get and replace this in javascript ( jquery?
How can I get and replace this in javascript ( jquery?
我需要操作一个链接href,如下所示:
/代理/视图/模型:成员/ag_start_dateMonth:08/ag_start_dateYear:2012/ag_end_dateMonth:08/ag_end_dateYear:2012
我需要获取部分:ag_start_dateMonth
,并将值08
替换为用户通过表单选择的值
这意味着,我需要找到字符串中这个模式ag_start_dateMonth
的位置,并在:
之后和下一个/
之前找到值,然后用用户通过表单选择选项给出的新值替换它。
我该怎么做?请注意,我不太确定regex语法:-/
使用replace:
var s = '/agents/view/model:Member/ag_start_dateMonth:08/ag_start_dateYear:2012/ag_end_dateMonth:08/ag_end_dateYear:2012';
var selected = 10;
s = s.replace(/(ag_start_dateMonth:)([0-9]+)/, '$1' + selected);
这个方便的正则表达式维护两个匹配的组:一个可能称为static,另一个包含要替换的日期。
这应该会让你开始:
var s = '/agents/view/model:Member/ag_start_dateMonth:08/ag_start_dateYear:2012/' +
'ag_end_dateMonth:08/ag_end_dateYear:2012';
var newText = 'foo';
alert(s.replace(/(ag_start_dateMonth:)08('/)/, '$1' + newText + '$2'));
如果此输入来自页面上的表单,则可以始终"重建"href,而不是搜索和替换。假设您有一个从页面上获取这些值的表单,使用jQuery,这对于之类的东西来说是微不足道的
jQuery('#id-of-form button').click( function () {
var start_month = jQuery('#id-of-form select.start-month').val();
var start_year = jQuery('#id-of-form select.start-year').val();
var end_month = jQuery('#id-of-form select.end-month').val();
var end_year = jQuery('#id-of-form select.end-year').val();
jQuery(a#your-link-id).attr('href','/agents/view/model:Member/ag_start_dateMonth:' +
start_month + '/ag_startdateYear:' + start_year + "/ag_end_dateMonth:" +
end_month + '/ag_end_dateYear:' + end_year);
});
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