There is a regular session in which you need to use a variable, for example, so that it is in the form:

replace(/<[\s+]?тут должна быть переменная[\s+]?([^<]*)?>/gim, '<переменная $1 />');

How to implement this?

    2 answers 2

    var re = new RegExp('<[\s+]?' + variable + '[\s+]?([^<]*)?>', 'gim');

      Look here. Variables can be organized through brackets and call $ 1- $ 9.

      Finds x and remembers. This is called “memory brackets”. For example, / (foo) / will find and remember 'foo' in "foo bar." The found substring is stored in the search result array or in the predefined properties of the RegExp object: $ 1, ..., $ 9. In addition, brackets combine what is in them into a single element of the pattern. For example, (abc) * - repeating abc 0 or more times.

      In general, here is a useful article about regulars .