swc/ecmascript/minifier/tests/compress/fixture/projects/yui/1/output.js
강동윤 f44e25c3af
fix(es/minifier): Improve output of minifier (#1990)
swc_common:
 - Add `Span.has_mark`.

swc_ecma_codegen:
 - Emit `1e3` for `1000`.
 - Optimize output. (#1986)

swc_ecma_minifier:
 - name mangler: Don't use keywords as an id.
 - `properties`: Optimize member expression with string properties.
 - `inline`: Inline some function expressions even if it's not fn-local.
 - `analyzer`: Track reassignment correctly.
 - `analyzer`: Track fn-local correctly.
 - `sequences`: Inject `void` if required.
 - `inline`: Inline function declarations correctly.
 - `sequences`: Merge expressions into test of if statements.
 - `sequences`: Reduce calls to an assigned variable.
 - Use `Marks` instead of `&dyn Comments`.


swc_ecma_transforms_optimization:
 - `expr_simplifier`: Fix infinite loops.

node/swc:
 - Ensure that `.transform` performs minification. (#1989)
2021-08-04 00:52:47 +09:00

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JavaScript

export const E = {
test: function(Y) {
var DOCUMENT = Y.config.doc, useSVG = !Y.config.defaultGraphicEngine || "canvas" != Y.config.defaultGraphicEngine, canvas = DOCUMENT && DOCUMENT.createElement("canvas");
return DOCUMENT && DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1") && (useSVG || !canvas);
}
};