source:
node_modules/d3-hierarchy/src/accessors.js
| Last change on this file was e4c61dd, checked in by , 6 months ago | |
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| File size: 166 bytes | |
| Rev | Line | |
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| [e4c61dd] | 1 | export function optional(f) { |
| 2 | return f == null ? null : required(f); | |
| 3 | } | |
| 4 | ||
| 5 | export function required(f) { | |
| 6 | if (typeof f !== "function") throw new Error; | |
| 7 | return f; | |
| 8 | } |
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