| 1 | import before from './before.js';
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| 2 |
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| 3 | /**
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| 4 | * Creates a function that is restricted to invoking `func` once. Repeat calls
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| 5 | * to the function return the value of the first invocation. The `func` is
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| 6 | * invoked with the `this` binding and arguments of the created function.
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| 7 | *
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| 8 | * @static
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| 9 | * @memberOf _
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| 10 | * @since 0.1.0
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| 11 | * @category Function
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| 12 | * @param {Function} func The function to restrict.
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| 13 | * @returns {Function} Returns the new restricted function.
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| 14 | * @example
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| 15 | *
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| 16 | * var initialize = _.once(createApplication);
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| 17 | * initialize();
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| 18 | * initialize();
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| 19 | * // => `createApplication` is invoked once
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| 20 | */
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| 21 | function once(func) {
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| 22 | return before(2, func);
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| 23 | }
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| 24 |
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| 25 | export default once;
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