javascript:
javascript:
.replace(/_/g," ");
I have it in my code but can't remember why or what it does! Can one of you regular expression gurus help? I know this may seem basic, but regular expressions are not my cup of tea, and googling for /g won't help much...
我的代码中有它，但不记得它是怎么做的!你们中的一个正则表达式大师能帮上忙吗?我知道这看起来很简单，但是规则的表达方式并不是我喜欢的，搜索/g也没什么用……
3 个解决方案
#1
118
The regex matches the _ character.
regex匹配_字符。
The g means Global, and causes the replace call to replace all matches, not just the first one.
g表示全局，并导致replace调用替换所有匹配，而不仅仅是第一个匹配。
#2
22
Like everyone else has said, it replaces all underscores with spaces. So "Hello_there." would become "Hello there."
就像其他人说的那样，它用空格替换了所有的下划线。所以"Hello_there "会变成"Hello there "
But along with the answer, I want to suggest something to you. Use comments.
除了答案，我还想给你提点建议。使用注释。
In your code say something like:
在你的代码中可以这样写:
// Replaces all underscores so that blah blah blah blah blah..
var hello = "Hello_there."
.replace(/_/g, ' ');
#3
2
Returns a new string with all the underscores in the source string replaced with spaces.
返回一个新的字符串，在源字符串中所有下划线替换为空格。
#1
118
The regex matches the _ character.
regex匹配_字符。
The g means Global, and causes the replace call to replace all matches, not just the first one.
g表示全局，并导致replace调用替换所有匹配，而不仅仅是第一个匹配。
#2
22
Like everyone else has said, it replaces all underscores with spaces. So "Hello_there." would become "Hello there."
就像其他人说的那样，它用空格替换了所有的下划线。所以"Hello_there "会变成"Hello there "
But along with the answer, I want to suggest something to you. Use comments.
除了答案，我还想给你提点建议。使用注释。
In your code say something like:
在你的代码中可以这样写:
// Replaces all underscores so that blah blah blah blah blah..
var hello = "Hello_there."
.replace(/_/g, ' ');
#3
2
Returns a new string with all the underscores in the source string replaced with spaces.
返回一个新的字符串，在源字符串中所有下划线替换为空格。