JavaScript逗号列表，但最后有一个和 [英] Javascript comma list but has an and at the last one

问题描述

我正在尝试创建一个函数，该函数将包含单词列表-并将其隐藏为这样的句子.

jsfiddle

http://jsfiddle.net/0ht35rpb/107/

//数组列表

 内容":{"0":[情绪困​​扰"，行为困难"，活动过度和注意力集中困难"，与其他年轻人相处的困难"]，"5":[有益和有益的行为"]} 

//句子

情绪困扰，行为困难，活动过度和专注困难的得分很高，与其他年轻人相处的困难也很高.< p>友善和乐于助人的分数很低

"

//当前功能

  grammarCheck:函数(值){//x，y，z和d//zvar count = vals.length;var text = vals.join('，')//返回[this.props.data.contents [key] .slice(0，-1).join(，")，this.props.data.contents [key] .slice(-1)[0]].join(this.props.data.contents [key] .length< 2?":和")；返回文字} 

解决方案

这应该有效.

 函数createSentence(array){如果(array.length == 1){返回数组[0];}否则，如果(array.length == 0){返回 "";}var leftSide = array.slice(0，array.length-1).join(，");返回leftSide +和" + array [array.length-1];}console.log(createSentence(["dogs"，"cats"，"fish"])));console.log(createSentence(["dogs"，"cats"])));console.log(createSentence(["dogs"])));console.log(createSentence([]));  

I am trying to create a function that will take a list of words -- and covert it into a sentence like this.

jsfiddle

http://jsfiddle.net/0ht35rpb/107/

// array list

"contents": {
   "0": ["emotional distress", "behavioural difficulties", "hyperactivity and concentration difficulties", "difficulties in getting along with other young people"],
   "5": ["kind and helpful behaviour"]
}

//sentence

"<p>Score for emotional distress, behavioural difficulties, hyperactivity and concentration difficulties very high and difficulties in getting along with other young people very high</p>
<p>Score for kind and helpful behaviour very low</p>"

//current function

grammarCheck : function(vals) {
  //x,y,z and d
  //z
  var count = vals.length;

  var text = vals.join(', ')

  //return [ this.props.data.contents[key].slice(0, -1).join(", "), this.props.data.contents[key].slice(-1)[0] ].join(this.props.data.contents[key].length < 2 ? "" : " and ");

  return text
}

解决方案

This should work.

function createSentence(array) {
  if (array.length == 1) {
    return array[0];
  } else if (array.length == 0) {
    return "";
  }
  var leftSide = array.slice(0, array.length - 1).join(", ");
  return leftSide + " and " + array[array.length - 1];
}

console.log(createSentence(["dogs", "cats", "fish"]));
console.log(createSentence(["dogs", "cats"]));
console.log(createSentence(["dogs"]));
console.log(createSentence([]));

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