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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2017-02-25 04:13:10 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-02-25 04:13:10 +0800 |
| commit | 834f9f39245f1ddf5a29c579afd7ebcdb0afe585 (patch) | |
| tree | a36674b73ece7f86b27f8fefc74890edf664f3fc | |
| parent | cf0951f72635f898ef9dc98ced3c73a1c488cc17 (diff) | |
| download | tracifyjs-834f9f39245f1ddf5a29c579afd7ebcdb0afe585.tar.gz tracifyjs-834f9f39245f1ddf5a29c579afd7ebcdb0afe585.zip | |
update docs for `pure_funcs` & `drop_console` (#1503)
closes #1362
closes #1399
| -rw-r--r-- | README.md | 17 |
1 files changed, 10 insertions, 7 deletions
@@ -87,10 +87,9 @@ The available options are: -b, --beautify Beautify output/specify output options. -m, --mangle Mangle names/pass mangler options. -r, --reserved Reserved names to exclude from mangling. - -c, --compress Enable compressor/pass compressor options. Pass - options like -c - hoist_vars=false,if_return=false. Use -c with - no argument to use the default compression + -c, --compress Enable compressor/pass compressor options, e.g. + `-c 'if_return=false,pure_funcs=["Math.pow","console.log"]'` + Use `-c` with no argument to enable default compression options. -d, --define Global definitions -e, --enclose Embed everything in a big function, with a @@ -151,8 +150,10 @@ The available options are: them explicitly on the command line. --mangle-regex Only mangle property names matching the regex --name-cache File to hold mangled names mappings - --pure-funcs List of functions that can be safely removed if - their return value is not used [array] + --pure-funcs Functions that can be safely removed if their + return value is not used, e.g. + `--pure-funcs Math.floor console.info` + (requires `--compress`) ``` Specify `--output` (`-o`) to declare the output file. Otherwise the output @@ -415,7 +416,9 @@ to set `true`; it's effectively a shortcut for `foo=true`). overhead (compression will be slower). - `drop_console` -- default `false`. Pass `true` to discard calls to - `console.*` functions. + `console.*` functions. If you wish to drop a specific function call + such as `console.info` and/or retain side effects from function arguments + after dropping the function call then use `pure_funcs` instead. - `keep_fargs` -- default `true`. Prevents the compressor from discarding unused function arguments. You need this |