terser - npm Package Compare versions

Comparing version 4.4.3 to 4.5.0

CHANGELOG.md

 # Changelog
 
+## v4.5.0
+
+ - Inlining has been improved
+ - An issue where keep_fnames combined with functions declared through variables was causing name shadowing has been fixed
+ - You can now set the ES version through their year
+ - The output option `keep_numbers` has been added, which prevents Terser from turning `1000` into `1e3` and such
+ - Internal small optimisations and refactors
+
 ## v4.4.3
@@ -4,0 +12,0 @@

package.json

@@ -7,3 +7,3 @@ {
   "license": "BSD-2-Clause",
-  "version": "4.4.3",
+  "version": "4.5.0",
   "engines": {
@@ -10,0 +10,0 @@ "node": ">=6.0.0"

README.md

@@ -5,3 +5,4 @@ <h1><img src="https://terser.org/img/terser-banner-logo.png" alt="Terser" width="400"></h1>
   [![NPM Downloads][downloads-image]][downloads-url]
-  [![Linux Build][travis-image]][travis-url]
+  [![Travis Build][travis-image]][travis-url]
+  [![Opencollective financial contributors][opencollective-contributors]][opencollective-url]
 
@@ -26,2 +27,4 @@ A JavaScript parser and mangler/compressor toolkit for ES6+.
 [travis-url]: https://travis-ci.org/terser/terser
+[opencollective-contributors]: https://opencollective.com/terser/tiers/badge.svg
+[opencollective-url]: https://opencollective.com/terser
 
@@ -536,3 +539,3 @@ Why choose terser?
 
-- `ecma` (default `undefined`) - pass `5`, `6`, `7` or `8` to override `parse`,
+- `ecma` (default `undefined`) - pass `5`, `2015`, `2016` or `2017` to override `parse`,
   `compress` and `output`'s `ecma` options.
@@ -614,3 +617,3 @@
     },
-    ecma: 5, // specify one of: 5, 6, 7 or 8
+    ecma: 5, // specify one of: 5, 2015, 2016, 2017 or 2018
     keep_classnames: false,
@@ -680,5 +683,5 @@ keep_fnames: false,
 
-- `ecma` (default: `8`) -- specify one of `5`, `6`, `7` or `8`. Note: this setting
+- `ecma` (default: `2017`) -- specify one of `5`, `2015`, `2016` or `2017`. Note: this setting
   is not presently enforced except for ES8 optional trailing commas in function
-  parameter lists and calls with `ecma` `8`.
+  parameter lists and calls with `ecma` `2017`.
 
@@ -691,5 +694,6 @@ - `html5_comments` (default `true`)
 
-- `arrows` (default: `true`) -- Converts `()=>{return x}` to `()=>x`. Class
-  and object literal methods will also be converted to arrow expressions if
-  the resultant code is shorter: `m(){return x}` becomes `m:()=>x`.
+- `arrows` (default: `true`) -- Class and object literal methods are converted
+  will also be converted to arrow expressions if the resultant code is shorter:
+  `m(){return x}` becomes `m:()=>x`. To do this to regular ES5 functions which
+  don't use `this` or `arguments`, see `unsafe_arrows`.
 
@@ -733,3 +737,3 @@ - `arguments` (default: `false`) -- replace `arguments[index]` with function
 
-- `ecma` (default: `5`) -- Pass `6` or greater to enable `compress` options that
+- `ecma` (default: `5`) -- Pass `2015` or greater to enable `compress` options that
   will transform ES5 code into smaller ES6+ equivalent forms.
@@ -856,3 +860,3 @@
   the function having a `prototype`, which arrow functions lack.
-  This transform requires that the `ecma` compress option is set to `6` or greater.
+  This transform requires that the `ecma` compress option is set to `2015` or greater.
 
@@ -992,3 +996,3 @@ - `unsafe_comps` (default: `false`) -- Reverse `<` and `<=` to `>` and `>=` to
 
-- `ecma` (default `5`) -- set output printing mode. Set `ecma` to `6` or
+- `ecma` (default `5`) -- set output printing mode. Set `ecma` to `2015` or
   greater to emit shorthand object properties - i.e.: `{a}` instead of `{a: a}`.
@@ -1007,2 +1011,5 @@ The `ecma` option will only change the output in direct control of the
 
+- `keep_numbers` (default `false`) -- keep number literals as it was in original code
+ (disables optimizations like converting `1000000` into `1e6`)
+
 - `keep_quoted_props` (default `false`) -- when turned on, prevents stripping
@@ -1009,0 +1016,0 @@ quotes from property names in object literals.

tools/terser.d.ts

@@ -5,4 +5,7 @@ /// <reference lib="es2015" />
 
-export type ECMA = 5 | 6 | 7 | 8 | 9;
+/** @deprecated since this versions basically do not exist */
+type ECMA_UNOFFICIAL = 6 | 7 | 8 | 9;
 
+export type ECMA = 5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | ECMA_UNOFFICIAL;
+
 export interface ParseOptions {
@@ -9,0 +12,0 @@ bare_returns?: boolean;

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Improved metrics

Total package byte prevSize

1718063

increased by0.04%

Number of package files

17

increased by6.25%

Lines of code

7632

increased by0.09%

Number of lines in readme file

1389

increased by0.51%

No dependency changes