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5

Replacing only a part of regexp matching

rated 0 times [ 11] [ 6] / answers: 1 / hits: 27561 / 13 Years ago, tue, january 24, 2012, 12:00:00

please consider the following javascript code:

myObject.myMethod();.replace(/.w+(/g, xxx);

it gives myObjectxxx); as .myMethod( is selected.

Now I would only select myMethod instead. In other words I want to select any word starting with . and ending with ( (excluded).

Thanks, Luca.

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answered 13 Years ago deving · Accepted Answer

General answer: Capture the part that you want to keep with parentheses, and include it in the substitution string as $1.

See any regexp substitution tutorial for details.

Here: just include the . and the ( in your substitution string.

For an exercise, write a regexp that will turn any string of the scheme --ABC--DEF-- to --DEF--ABC-- for arbitrary letter-values of ABC and DEF. So --XY--IJK-- should turn into --IJK--XY--. Here you really need to use capture groups and back references.