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Diffstat (limited to 'deps/npm/node_modules/lodash/function/rearg.js')
-rw-r--r-- | deps/npm/node_modules/lodash/function/rearg.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/deps/npm/node_modules/lodash/function/rearg.js b/deps/npm/node_modules/lodash/function/rearg.js new file mode 100644 index 0000000000..f2bd9c41ec --- /dev/null +++ b/deps/npm/node_modules/lodash/function/rearg.js @@ -0,0 +1,40 @@ +var baseFlatten = require('../internal/baseFlatten'), + createWrapper = require('../internal/createWrapper'), + restParam = require('./restParam'); + +/** Used to compose bitmasks for wrapper metadata. */ +var REARG_FLAG = 256; + +/** + * Creates a function that invokes `func` with arguments arranged according + * to the specified indexes where the argument value at the first index is + * provided as the first argument, the argument value at the second index is + * provided as the second argument, and so on. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to rearrange arguments for. + * @param {...(number|number[])} indexes The arranged argument indexes, + * specified as individual indexes or arrays of indexes. + * @returns {Function} Returns the new function. + * @example + * + * var rearged = _.rearg(function(a, b, c) { + * return [a, b, c]; + * }, 2, 0, 1); + * + * rearged('b', 'c', 'a') + * // => ['a', 'b', 'c'] + * + * var map = _.rearg(_.map, [1, 0]); + * map(function(n) { + * return n * 3; + * }, [1, 2, 3]); + * // => [3, 6, 9] + */ +var rearg = restParam(function(func, indexes) { + return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes)); +}); + +module.exports = rearg; |