[英]Replace string within all occurrences of a string character javascript
I want to find exact occurrences of all \n
and :
and replace the string in between with a specific string.我想找到所有
\n
和:
的确切出现,并将其间的字符串替换为特定字符串。
For example, given this input:例如,给定这个输入:
Testing \n string of character \n June,23 2020: the task was completed. \n April,4 2020: All looks \n good
The expected result is this:预期的结果是这样的:
Testing \n string of character <br><b> June,23 2020</b><br> the task was completed. <br><b> April,4 2020</b></br> All looks \n good
const text=`Testing \n string of character \n June,23 2020: the task was completed. \n April,4 2020: All looks \n good`; const newlineColonRegex = /(\n|:)/g const replaceWith = '<br><b>' const newString = text.replace(newlineColonRegex, replaceWith) console.log(newString)
You can exclude matching both using an negated character class.您可以使用否定字符 class 排除两者的匹配。
\n([^\n:]+):
Replace with用。。。来代替
<br><br>$1<br><br>
const regex = /\n([^\n:]+:)/g; const text = `Testing \n string of character \n June,23 2020: the task was completed. \n April,4 2020: All looks \n good`; const newlineColonRegex = /\n([^\n:]+):/g; const replaceWith = '<br><br>$1<br><br>' const newString = text.replace(newlineColonRegex, replaceWith) console.log(newString)
If you also want to match it from the start of the string, you could use an anchor instead of a newline ^([^\n:]+:)
and use the /gm
flags如果您还想从字符串的开头匹配它,您可以使用锚点而不是换行符
^([^\n:]+:)
并使用/gm
标志
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