[Bug]: Default `transform` regex does not escape dot properly

[nikwen]

Version

29.7.0

Steps to reproduce

1. npm i -D jest typescript ts-jest @types/jest
2. npx ts-jest config:init

Expected behavior

Regex in jest.config.js escapes dot properly, e.g. '^.+\\.tsx?$'.

Actual behavior

Regex is not escaped properly: '^.+.tsx?$'

Regexes are defined here:

ts-jest/src/constants.ts

Lines 6 to 11 in 78c406c

	export const TS_TRANSFORM_PATTERN = '^.+.tsx?$'
	export const ESM_TS_TRANSFORM_PATTERN = '^.+\\.m?tsx?$'
	export const TS_JS_TRANSFORM_PATTERN = '^.+.[tj]sx?$'
	export const ESM_TS_JS_TRANSFORM_PATTERN = '^.+\\.m?[tj]sx?$'
	export const JS_TRANSFORM_PATTERN = '^.+.jsx?$'
	export const ESM_JS_TRANSFORM_PATTERN = '^.+\\.m?jsx?$'

Debug log

Irrelevant for this issue

Additional context

No response

Environment

System:
    OS: macOS 14.7
    CPU: (8) arm64 Apple M1
  Binaries:
    Node: 20.16.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /opt/homebrew/bin/yarn
    npm: 10.8.1 - /usr/local/bin/npm
  npmPackages:
    jest: 29.7.0 => 29.7.0

[YukiBobier]

@nikwen

I noticed the same issue. The regex should properly escape dots.

[nikwen]

Thanks, @ahnpnl!