36 lines
546 B
Markdown
36 lines
546 B
Markdown
# babel-helper-evaluate-path
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A wrapper for babel's `path.evaluate`
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Fixes / Features:
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+ Detect usages before initialization / declaration
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```js
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function foo() {
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console.log(b); // ReferenceError
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let b = 1;
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}
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function bar() {
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console.log(a); // a is void 0
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var a = 5;
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console.log(a); // 5
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}
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```
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+ Detect usages in scopes outside of initialization for vars (hoisted)
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```js
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function foo() {
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if (a) var x = 5;
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console.log(x); // cannot determine
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}
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```
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## Installation
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```sh
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npm install babel-helper-evaluate-path --save-dev
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```
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