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39 lines
1.3 KiB
39 lines
1.3 KiB
/* Built-in method references for those with the same name as other `lodash` methods. */ |
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var nativeMax = Math.max; |
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/** |
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* Creates an array that is the composition of partially applied arguments, |
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* placeholders, and provided arguments into a single array of arguments. |
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* |
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* @private |
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* @param {Array} args The provided arguments. |
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* @param {Array} partials The arguments to prepend to those provided. |
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* @param {Array} holders The `partials` placeholder indexes. |
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* @params {boolean} [isCurried] Specify composing for a curried function. |
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* @returns {Array} Returns the new array of composed arguments. |
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*/ |
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function composeArgs(args, partials, holders, isCurried) { |
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var argsIndex = -1, |
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argsLength = args.length, |
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holdersLength = holders.length, |
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leftIndex = -1, |
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leftLength = partials.length, |
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rangeLength = nativeMax(argsLength - holdersLength, 0), |
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result = Array(leftLength + rangeLength), |
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isUncurried = !isCurried; |
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while (++leftIndex < leftLength) { |
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result[leftIndex] = partials[leftIndex]; |
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} |
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while (++argsIndex < holdersLength) { |
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if (isUncurried || argsIndex < argsLength) { |
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result[holders[argsIndex]] = args[argsIndex]; |
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} |
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} |
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while (rangeLength--) { |
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result[leftIndex++] = args[argsIndex++]; |
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} |
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return result; |
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} |
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export default composeArgs;
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