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update docs for pure_funcs & drop_console (#1503)

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closes #1362
closes #1399
This commit is contained in:
Alex Lam S.L
2017-02-25 04:13:10 +08:00
committed by GitHub
parent cf0951f726
commit 834f9f3924
1 changed files with 10 additions and 7 deletions
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17
README.md
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@@ -87,10 +87,9 @@ The available options are:
-b, --beautify Beautify output/specify output options. -b, --beautify Beautify output/specify output options.
-m, --mangle Mangle names/pass mangler options. -m, --mangle Mangle names/pass mangler options.
-r, --reserved Reserved names to exclude from mangling. -r, --reserved Reserved names to exclude from mangling.
-c, --compress Enable compressor/pass compressor options. Pass -c, --compress Enable compressor/pass compressor options, e.g.
options like -c `-c 'if_return=false,pure_funcs=["Math.pow","console.log"]'`
hoist_vars=false,if_return=false. Use -c with Use `-c` with no argument to enable default compression
no argument to use the default compression
options. options.
-d, --define Global definitions -d, --define Global definitions
-e, --enclose Embed everything in a big function, with a -e, --enclose Embed everything in a big function, with a
@@ -151,8 +150,10 @@ The available options are:
them explicitly on the command line. them explicitly on the command line.
--mangle-regex Only mangle property names matching the regex --mangle-regex Only mangle property names matching the regex
--name-cache File to hold mangled names mappings --name-cache File to hold mangled names mappings
--pure-funcs List of functions that can be safely removed if --pure-funcs Functions that can be safely removed if their
their return value is not used [array] 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 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). overhead (compression will be slower).
- `drop_console` -- default `false`. Pass `true` to discard calls to - `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 - `keep_fargs` -- default `true`. Prevents the
compressor from discarding unused function arguments. You need this compressor from discarding unused function arguments. You need this