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42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
6 years ago
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/* 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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* This function is like `composeArgs` except that the arguments composition
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* is tailored for `_.partialRight`.
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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 append 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 composeArgsRight(args, partials, holders, isCurried) {
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var argsIndex = -1,
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argsLength = args.length,
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holdersIndex = -1,
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holdersLength = holders.length,
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rightIndex = -1,
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rightLength = partials.length,
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rangeLength = nativeMax(argsLength - holdersLength, 0),
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result = Array(rangeLength + rightLength),
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isUncurried = !isCurried;
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while (++argsIndex < rangeLength) {
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result[argsIndex] = args[argsIndex];
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}
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var offset = argsIndex;
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while (++rightIndex < rightLength) {
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result[offset + rightIndex] = partials[rightIndex];
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}
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while (++holdersIndex < holdersLength) {
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if (isUncurried || argsIndex < argsLength) {
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result[offset + holders[holdersIndex]] = args[argsIndex++];
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}
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}
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return result;
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}
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module.exports = composeArgsRight;
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