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CollectionChain.reduce
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How to use
reduce
function
in
CollectionChain

Best JavaScript code snippets using lodash.CollectionChain.reduce(Showing top 6 results out of 315)

origin: anpandu/nodejs-text-summarizer

_.chain(sentences)
  .map(function (sentence) {
   sentence['word_order_similarity'] = _.chain(sentences)
    .map(function (item) { return sim3(item['words'], sentence['words']) })
    .reduce(function(total, n) { return total + n })
    .value()
   return sentence
  })
  .value()
origin: anpandu/nodejs-text-summarizer

/**
 * @param {}
 * @return {}
 * @api public
 */

var distance = function (vector) {
 var sum = _.chain(vector)
  .map(function (a) { return a*a })
  .reduce(function(total, n) { return total + n })
  .value()
 return mathjs.sqrt(sum)
}
origin: getconversio/redis-metrics

/**
 * Parse & merge multiple rank results from redis.
 * @param  {array}  ranks In this format: [['foo', '39', 'bar', '13'], ['foo', '11']]
 * @return {object}       In this format: [{ foo: 50 }, { bar: 13 }]
 */
const createRankTotalParser = (direction, startingAt, limit) => ranks => {
 return _.chain(ranks)
  .flatten()
  .chunk(2)
  .reduce((acc, [key, count]) => _.tap(acc, acc => {
   acc[key] = (acc[key] || 0) + Number(count);
  }), { })
  .toPairs()
  .sortBy(([, count]) => direction === 'asc' ? count : -count)
  .drop(startingAt)
  .takeWhile((value, index) => limit <= 0 || index < limit)
  .map(([key, count]) => ({ [key]: count }))
  .value();
}
origin: anpandu/nodejs-text-summarizer

var WordSemanticSimilarity = function (words1, words2) {

 var sum_wssim = _.chain(words1)
  .map(function (word1) { return wssim(word1, words2) })
  .reduce(function(total, n) { return total + n })
  .value()
 var sum_wssim2 = _.chain(words2)
  .map(function (word2) { return wssim(word2, words1) })
  .reduce(function(total, n) { return total + n })
  .value()
 
 sum_wssim = (sum_wssim) ? sum_wssim : 0
 sum_wssim2 = (sum_wssim2) ? sum_wssim2 : 0

 var result = (sum_wssim + sum_wssim2) / (words1.length + words2.length)
 result = ((words1.length + words2.length) == 0) ? 0 : result
 return result
}
origin: anpandu/nodejs-text-summarizer

_.chain(sentences)
  .map(function (sentence) {
   sentence['word_semantic_similarity'] = _.chain(sentences)
    .map(function (item) { return sim2(item['words'], sentence['words']) })
    .reduce(function(total, n) { return total + n })
    .value()
   return sentence
  })
  .value()
origin: anpandu/nodejs-text-summarizer

_.chain(sentences)
  .map(function (sentence) {
   sentence['word_form_similarity'] = _.chain(sentences)
    .map(function (item) { return sim1(item['words'], sentence['words']) })
    .reduce(function(total, n) { return total + n })
    .value()
   return sentence
  })
  .value()
lodash(npm)CollectionChainreduce

Most used lodash functions

  • LoDashStatic.map
    Creates an array of values by running each element in collection through iteratee. The iteratee is
  • LoDashStatic.isEmpty
    Checks if value is empty. A value is considered empty unless it’s an arguments object, array, string
  • LoDashStatic.forEach
    Iterates over elements of collection invoking iteratee for each element. The iteratee is invoked wit
  • LoDashStatic.find
    Iterates over elements of collection, returning the first element predicate returns truthy for.
  • LoDashStatic.pick
    Creates an object composed of the picked `object` properties.
  • LoDashStatic.get,
  • LoDashStatic.isArray,
  • LoDashStatic.filter,
  • LoDashStatic.merge,
  • LoDashStatic.isString,
  • LoDashStatic.isFunction,
  • LoDashStatic.assign,
  • LoDashStatic.extend,
  • LoDashStatic.includes,
  • LoDashStatic.keys,
  • LoDashStatic.cloneDeep,
  • LoDashStatic.uniq,
  • LoDashStatic.isObject,
  • LoDashStatic.omit

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