useObjectSpread
¥Summary
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规则生效日期：
v2.0.0¥Rule available since:
v2.0.0 -
诊断类别：
lint/style/useObjectSpread¥Diagnostic Category:
lint/style/useObjectSpread -
此规则包含 safe 修复程序。
¥This rule has a safe fix.
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此规则的默认严重级别为 information。
¥The default severity of this rule is information.
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来源：
¥Sources:
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与
prefer-object-spread相同¥Same as
prefer-object-spread
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¥How to configure
{ "linter": { "rules": { "style": { "useObjectSpread": "error" } } }}¥Description
构建新对象时，优先使用 Object.assign() 对象展开。
¥Prefer object spread over Object.assign() when constructing new objects.
对象扩展语法比 Object.assign() 更简洁、更易读，并且在从现有对象创建新对象时性能更好。它也拥有更好的 TypeScript 集成。
¥Object spread syntax is more concise, more readable, and performs better
than Object.assign() when creating a new object from existing objects.
It also has better TypeScript integration.
¥Examples
¥Invalid
Object.assign({}, foo);code-block.js:1:1 lint/style/useObjectSpread FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Object spread syntax is more concise, readable, and performs better than Object.assign.
> 1 │ Object.assign({}, foo);
│ ^^^^^^^^^^^^^
2 │
ℹ Safe fix: Replace Object.assign({…}, <object>) with { …<object> }.
1 │ - Object.assign({},·foo);
1 │ + ({...foo,});
2 2 │
Object.assign({}, { foo: 'bar' });code-block.js:1:1 lint/style/useObjectSpread FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Object spread syntax is more concise, readable, and performs better than Object.assign.
> 1 │ Object.assign({}, { foo: ‘bar’ });
│ ^^^^^^^^^^^^^
2 │
ℹ Safe fix: Replace Object.assign({…}, <object>) with { …<object> }.
1 │ - Object.assign({},·{·foo:·‘bar’·});
1 │ + ({foo:·‘bar’·,});
2 2 │
Object.assign({ foo: 'bar' }, baz);code-block.js:1:1 lint/style/useObjectSpread FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Object spread syntax is more concise, readable, and performs better than Object.assign.
> 1 │ Object.assign({ foo: ‘bar’ }, baz);
│ ^^^^^^^^^^^^^
2 │
ℹ Safe fix: Replace Object.assign({…}, <object>) with { …<object> }.
1 │ - Object.assign({·foo:·‘bar’·},·baz);
1 │ + ({foo:·‘bar’·,...baz,});
2 2 │
Object.assign({}, baz, { foo: 'bar' });code-block.js:1:1 lint/style/useObjectSpread FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Object spread syntax is more concise, readable, and performs better than Object.assign.
> 1 │ Object.assign({}, baz, { foo: ‘bar’ });
│ ^^^^^^^^^^^^^
2 │
ℹ Safe fix: Replace Object.assign({…}, <object>) with { …<object> }.
1 │ - Object.assign({},·baz,·{·foo:·‘bar’·});
1 │ + ({...baz,foo:·‘bar’·,});
2 2 │
¥Valid
({ ...foo });({ ...baz, foo: 'bar' });允许修改现有对象：
¥Modifying an existing object is allowed:
Object.assign(foo, { bar: baz });¥Related links
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