如何使用正则表达式匹配特定字符后的整个单词或句子

Question

I have an object that contains other objects, some of these have a key that is a string that starts with column like this: ':Campaign':{data} I need to loop through that object and save all the keys that start with column (:) into strings. For that I need a regex that matches the first character: and take the whole word right after:

so far I wrote this but found returns only the column:

const keys = Object.keys(output)
const regex = /^:*/gi;

keys.forEach(key =>  {
  const found = key.match(regex);
  console.log('found: ', found);
})

Log is:

found:  [ ':' ]
found:  [ ':' ]

Answer 1

Here are 2 options depending on whether you want to include the colon in the pattern that you are capturing.

• with the colon ^:\w*
• with a lookback for the colon (?<=^:)\w*
  This will match a word after the colon.
  You may want any number of any character .* or any combination of word characters and spaces `[\w\s]*

Answer 2

Try this !

[':].*[']

It should give you the whole key in single quotes.