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Diffstat (limited to 'node_modules/well-known-symbols/index.js')
| -rw-r--r-- | node_modules/well-known-symbols/index.js | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/node_modules/well-known-symbols/index.js b/node_modules/well-known-symbols/index.js new file mode 100644 index 000000000..6c1395b78 --- /dev/null +++ b/node_modules/well-known-symbols/index.js @@ -0,0 +1,19 @@ +'use strict' + +// https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Symbol#Well-known_symbols +const WELL_KNOWN = new Map([ + [Symbol.iterator, 'Symbol.iterator'], + [Symbol.match, 'Symbol.match'], + [Symbol.replace, 'Symbol.replace'], + [Symbol.search, 'Symbol.search'], + [Symbol.split, 'Symbol.split'], + [Symbol.hasInstance, 'Symbol.hasInstance'], + [Symbol.isConcatSpreadable, 'Symbol.isConcatSpreadable'], + [Symbol.unscopables, 'Symbol.unscopables'], + [Symbol.species, 'Symbol.species'], + [Symbol.toPrimitive, 'Symbol.toPrimitive'], + [Symbol.toStringTag, 'Symbol.toStringTag'] +].filter(entry => entry[0])) + +exports.isWellKnown = symbol => WELL_KNOWN.has(symbol) +exports.getLabel = symbol => WELL_KNOWN.get(symbol) |