问题描述
我正在尝试通过文本框搜索一个完整的单词.假设我搜索我",我应该找到所有出现的我"这个词.在文本中,但不是memmm"按说.
I am trying to search a single whole word through a textbox. Say I search "me", I should find all occurrences of the word "me" in the text, but not "memmm" per say.
我正在使用 JavaScript 的 search('my regex expression')
来执行当前搜索(没有成功).
I am using JavaScript's search('my regex expression')
to perform the current search (with no success).
在使用 开关(似乎不起作用)的几个建议之后,我发布了对我的问题的修订解释:
After several proposals to use the switches (which don't seem to work) I am posting a revised explanation of my problem:
出于某种原因,这似乎不起作用.假设以下 JavaScript 搜索文本:
For some reason this doesn't seem to do the trick. Assume the following JavaScript search text:
var lookup = '
2 PC Games
';
lookup = lookup.trim() ;
alert(lookup );
var tttt = 'tttt';
alert((/(lookup)/g).test(2));
动线很重要
推荐答案
要使用动态正则表达式,请参阅我更新的代码:
To use a dynamic regular expression see my updated code:
new RegExp("\b" + lookup + "\b").test(textbox.value)
你的具体例子是倒退的:
Your specific example is backwards:
alert((/(2)/g).test(lookup));
这篇关于如何在 JavaScript 中匹配整个单词?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!