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Diffstat (limited to 'node_modules/lodash/overArgs.js')
-rw-r--r-- | node_modules/lodash/overArgs.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/lodash/overArgs.js b/node_modules/lodash/overArgs.js new file mode 100644 index 0000000..f0067db --- /dev/null +++ b/node_modules/lodash/overArgs.js @@ -0,0 +1,61 @@ +var apply = require('./_apply'), + arrayMap = require('./_arrayMap'), + baseFlatten = require('./_baseFlatten'), + baseIteratee = require('./_baseIteratee'), + baseRest = require('./_baseRest'), + baseUnary = require('./_baseUnary'), + castRest = require('./_castRest'), + isArray = require('./isArray'); + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeMin = Math.min; + +/** + * Creates a function that invokes `func` with its arguments transformed. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Function + * @param {Function} func The function to wrap. + * @param {...(Function|Function[])} [transforms=[_.identity]] + * The argument transforms. + * @returns {Function} Returns the new function. + * @example + * + * function doubled(n) { + * return n * 2; + * } + * + * function square(n) { + * return n * n; + * } + * + * var func = _.overArgs(function(x, y) { + * return [x, y]; + * }, [square, doubled]); + * + * func(9, 3); + * // => [81, 6] + * + * func(10, 5); + * // => [100, 10] + */ +var overArgs = castRest(function(func, transforms) { + transforms = (transforms.length == 1 && isArray(transforms[0])) + ? arrayMap(transforms[0], baseUnary(baseIteratee)) + : arrayMap(baseFlatten(transforms, 1), baseUnary(baseIteratee)); + + var funcsLength = transforms.length; + return baseRest(function(args) { + var index = -1, + length = nativeMin(args.length, funcsLength); + + while (++index < length) { + args[index] = transforms[index].call(this, args[index]); + } + return apply(func, this, args); + }); +}); + +module.exports = overArgs; |