How to replace numbers with words via map?

• 17
  I have a string of numbers - '80 75 60 90 '. I need to replace them with words with a certain condition: if the number is in the range of 50-100, then replace it with the word "First", for a number from 30 to 50 by "Second", for a number from 10 to 30 by "Third". It also needs to be implemented via map.
  I've tried doing it myself, but it only outputs commas.
  

  var str = '80 75 85 90';
  var arr1 = str.split(' ');
      var doubles = arr1.map(function(arr1) {
    for(var i=0; i < arr1.length; i++) {
      if(arr1[i]>=50 && arr1[i]<=100) {
        arr1[i]="Первый";
      }
      if(arr1[i]>=30 && arr1[i]<=50) {
        arr1[i]="Второй";
      }
      if(arr1[i]>=10 && arr1[i]<=30) {
        arr1[i]="Третий";
      }
    }
  });
      alert(doubles);

  JavaScript Anonymous, Dec 17, 2020

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3 Answers
• -1

  function replacer(string, expression, mapper) {
  
    return (string.match(expression) || []).map(mapper);
  
  }
  
  
  
  function match(rawNumber) {
  
    let number = parseInt(rawNumber);
  
    
  
    if (number >= 10 && number < 30) {
  
      return 'Третий';
  
    } else if (number >= 30 && number < 50) {
  
      return 'Второй';
  
    } else if (number >= 50 && number < 100) {
  
      return 'Первый';
  
    } else {
  
      return 'Что-то';
  
    }
  
  }
  
  
  
  console.log(replacer('80 75 85 90 10 30 0', /\d+/g, match));
  
  // ['Первый', 'Первый', 'Первый', 'Первый', 'Третий', 'Второй', 'Что-то']

  Anonymous

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• 1

  var str = '80 25 85 90';
  
  var strArr = str.split(' ');
  
  var res = strArr.map((item)=>{
  
  		console.log(item);
  
  		if(item >= 50 && item <=100){
  
      		item = "First";
  
      }
  
     else if(item >= 30 && item <= 50){
  
      		item ="Second";
  
      }
  
      else if(item >=10 && item <= 30){
  
      	item ="Third";
  
      }
  
      return item;
  
  });
  
  console.log(res);

  Phoebe Moreno

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• 1

  var str = '5 80 75 30 85 90 10 30 0';
  
  var out= str.split(/ /).map(n=>(n=+n,n<10?`${n}`:n<30?'Третий':n<50?'Второй':n<100?'Первый':`${n}`)).join(' ');
  
  console.log(out); // 5 Первый Первый Второй Первый Первый Третий Второй 0

  Anonymous

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