| 1 | const expose = require('./expose');
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| 2 | const { assign } = Object;
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| 3 |
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| 4 | /**
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| 5 | * Bind an infinite set of methods to a class instance.
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| 6 | *
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| 7 | * @param {Object} instance
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| 8 | * Instance of a class
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| 9 | * @param {...string} methods
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| 10 | * Method names of a class
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| 11 | */
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| 12 | function bind(instance, ...methods) {
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| 13 | const reduceBoundMethods = (accumulator, name) =>
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| 14 | assign(accumulator, {
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| 15 | [name]: instance[name].bind(instance),
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| 16 | });
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| 17 | const boundMethods = methods.reduce(reduceBoundMethods, {});
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| 18 |
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| 19 | assign(instance, boundMethods);
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| 20 | }
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| 21 |
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| 22 | module.exports = expose({
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| 23 | bind,
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| 24 | });
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