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Description
Describe the bug
In some cases, template strings is not compressed as possible.
Input code
const example1 = (param) => `a${param}b` + param + `b`; // Not works
const example2 = (param) => `a${param}b` + `${param}` + `b`; // Works
alert(example1);
alert(example2);Config
{
"jsc": {
"parser": {
"syntax": "typescript",
"tsx": false
},
"target": "es2022",
"loose": false,
"minify": {
"compress": {
"arguments": false,
"arrows": true,
"booleans": true,
"booleans_as_integers": false,
"collapse_vars": true,
"comparisons": true,
"computed_props": true,
"conditionals": true,
"dead_code": true,
"directives": true,
"drop_console": false,
"drop_debugger": true,
"evaluate": true,
"expression": false,
"hoist_funs": false,
"hoist_props": true,
"hoist_vars": false,
"if_return": true,
"join_vars": true,
"keep_classnames": false,
"keep_fargs": true,
"keep_fnames": false,
"keep_infinity": false,
"loops": true,
"negate_iife": true,
"properties": true,
"reduce_funcs": false,
"reduce_vars": false,
"side_effects": true,
"switches": true,
"typeofs": true,
"unsafe": false,
"unsafe_arrows": false,
"unsafe_comps": false,
"unsafe_Function": false,
"unsafe_math": false,
"unsafe_symbols": false,
"unsafe_methods": false,
"unsafe_proto": false,
"unsafe_regexp": false,
"unsafe_undefined": false,
"unused": true,
"const_to_let": true,
"pristine_globals": true
},
"mangle": {
"toplevel": false,
"keep_classnames": false,
"keep_fnames": false,
"keep_private_props": false,
"ie8": false,
"safari10": false
}
}
},
"module": {
"type": "es6"
},
"minify": true,
"isModule": true
}Playground link
Expected behavior
const example1 = e => a${e}b${e}b, // here
example2 = e => `a${e}b${e}b`;
alert(example1),
alert(example2);
Actual behavior
const example1 = e => `a${e}b`+e+"b", // here
example2 = e => `a${e}b${e}b`;
alert(example1),
alert(example2);
Version
1.3.37
Additional context
Since a forced cast is happening between the template literals + whatever information is passed as an argument, then forcing the cast with a template literal will be the same as injecting it directly into a wider template string.
example1(123) => `abc` + 123 => "abc123"