Javascript how to show each element of array on a new line

Question

I have a string build form comma separated values I use split to get each value and after that I want to show each value on a new line but what really happens is th

Answer 1

i have modified your function bit cleaner.since already stefan mentioned your mistake.

function splitDate(dates) {
        if (dates != null)
        {
            var dates = dates.split(',');
            var xxx = dates.length;
            console.log(xxx);
            for (var i=0; i<xxx; i++)
                {
                    dates[i] = dates[i];                    
                }
        }
        console.log(dates.join('\r\n'));
        return dates.join('\r\n');        
    }

the above function you can do it in a single line:

if it's an array you can split into new line in following way:

var arr = ['apple','banana','mango'];
console.log(arr.join('\r\n'));

if it's a string:

var str = "apple,banana,mango";
console.log(str.split(',').join("\r\n"));

Answer 2

Link: https://snack.expo.io/GcMeWpPUX

import React from 'react'
import { SafeAreaView, Text, View, FlatList } from 'react-native'

export default class App extends React.Component {

    render() {
        return (
            <SafeAreaView style={{ flex: 1, alignItems: 'center', justifyContent: 'center',margin:20 }}>
                <FlatList
                    data={your_array_name}
                    keyExtractor={(item, index) => String(index)}
                    renderItem={({ item, index }) => {
                        return (
                            <Text style={{ color: '#ff8500', fontSize: 18 }}>{item.skills.splice(',').join("\n")}</Text>
                        )
                    }}
                />

            </SafeAreaView>
        )
    }

}


const your_array_name = [
    {
        id: 1,
        text: 'Lorem ipsum is simple dummy text for printing the line',
        skills: ['javascript', 'java']
    },
    {
        id: 2,
        text: 'Lorem ipsum is simple dummy text.',
        skills: ['javascript', 'java']
    }]

Answer 3

The for-loop is suspicious. Firstly, you do not process all items (the last one is missing, as @sarfraz pointed out). Sencondly you are returning the result (zzz) in the for-loop body:

for (var i=0; i<=xxx; i++)
{
  zzz[i] = zzz[i] + '<br />';
  return zzz; // for-loop will stop here! resulting in ["value1<br />", "Value2", etc...]
}

In Javscript you can simple "join" the array:

return dates.split(',').join("<br />")

Since you are simply replacing strings you could use the replace method:

return dates.replace(",", "<br />");