javascript替换查询字符串值 [英] javascript replace query string value

问题描述

可能的重复:
添加或更新查询字符串参数

我试图替换查询字符串中的页码，无论哪个数字是 1.

I am trying to replace the page number in the query string no matter what digit is to 1.

查询字符串

index.php?list&page=2&sort=epub

javascript

window.location.href.replace(new RegExp("/page=.*?&/"), "page=1&")

推荐答案

你的代码看起来几乎正确；然而:

Your code looks almost right; however:

• 您需要使用要么 new RegExp 或特殊的//正则表达式语法，但不能同时使用.
• replace 方法不会就地修改字符串，它只是返回修改后的副本.
• 而不是.*?，我觉得写\d+更有意义；如果您没有想到，更精确的正则表达式通常不太可能出错.

• you need to use either new RegExp or the special // regex syntax, but not both.
• the replace method doesn't modify the string in-place, it merely returns a modified copy.
• rather than .*?, I think it makes more sense to write \d+; more-precise regexes are generally less likely to go awry in cases you haven't thought of.

所以，把它放在一起:

window.location.href = window.location.href.replace(/page=\d+/, "page=1");

这篇关于javascript替换查询字符串值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！