convert String in array in javascript

Question

I have a string like this ,where first value is state and other value is its capital, I want to convert this string in array using javascript/jquery and spaces between strings is included.

"[['Congo' , '"Candice Levy"'],['Panama' , '"Xerxes Smith"'],['Tanzania' , '"Levi Douglas"'],['africa' , '"Uriel Benton"'],['Gabon' , '"Celeste Pugh"'],['Syrian' , '"Vance Campos"'],['Kyrgyzstan' , '"Wanda Garza"']]

my expected output like this

arr[0]= Congo
arr[1]= Candice Levy
arr[2]= Panama
arr[3]=Xerxes Smith

I have seen some example like this, but did not get any satisfied answer.please help

You have share the input array, please provide the expected output array as well. — Shiladitya
– Shiladitya, Commented Jul 3, 2017 at 6:21
your input actually is a json string of a 2-dimension array and you want to convert it into a 1-dimension array, right? — Nhon Dinh
– Nhon Dinh, Commented Jul 3, 2017 at 6:35

Hassan Imam · Accepted Answer · 2017-07-03 07:28:47Z

1

**EDIT : ** Thanks to shaochuancs's comment.

var str = "[['Congo' , '\"Candice Levy\"'],['Panama' , '\"Xerxes Smith\"'],['Tanzania' , '\"Levi Douglas\"'],['africa' , '\"Uriel Benton\"'],['Gabon' , '\"Celeste Pugh\"'],['Syrian' , '\"Vance Campos\"'],['Kyrgyzstan' , '\"Wanda Garza\"']]";

var str = str.replace(/'/g,'"').replace(/""/g,'"');
var arr = JSON.parse(str);
var merged = [].concat.apply([], arr);

console.log(merged);

var arr = [['Congo' , '"Candice Levy"'],['Panama' , '"Xerxes Smith"'],['Tanzania' , '"Levi Douglas"'],['africa' , '"Uriel Benton"'],['Gabon' , '"Celeste Pugh"'],['Syrian' , '"Vance Campos"'],['Kyrgyzstan' , '"Wanda Garza"']];

/********Using foreach*****************/
var newArray = [];
arr.forEach(function(ele) {
  ele.forEach(function(d) {
    newArray.push(d);
  });
});
//console.log(newArray);

/**********Using concat*********************/
var merged = [].concat.apply([], arr);
//console.log(merged);

var result = []
merged.forEach(str => result.push(str.replace(/"/g, "")));
console.log(result);

You can use the following method to remove \" from string

var result = []
merged.forEach(str => result.push(str.replace(/"/g, "")));

edited Jul 3, 2017 at 7:28

answered Jul 3, 2017 at 6:37

Hassan Imam

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1 Comment

shaochuancs Over a year ago

please note OP need to convert String to array. So the arr object in the code snippet need to be generated first :)

Arvind Sasikumar · Accepted Answer · 2017-07-03 06:44:52Z

What I understood is this: You have a string like what you have provided. You want it to be converted to an array like you have mentioned in your question (edited). This does the job:

function showInput(){
    var str = "\"[['Congo' , '\"Candice Levy\"'],['Panama' , '\"Xerxes Smith\"'],['Tanzania' , '\"Levi Douglas\"'],['africa' , '\"Uriel Benton\"'],['Gabon' , '\"Celeste Pugh\"'],['Syrian' , '\"Vance Campos\"'],['Kyrgyzstan' , '\"Wanda Garza\"']]";
    var res = str.split(",");
    var array = [];
    for (var i=0; i<res.length; i = i + 2){
        array[i] = res[i].substring(res[i].indexOf("'")+1,res[i].lastIndexOf("'"));
        array[i+1] = res[i+1].substring(res[i+1].indexOf('"')+1,res[i+1].lastIndexOf('"'));
    }
    //array variable has what you require
    alert(array.join());
}

What I am doing is I am first splitting everything by a comma and putting it into an array called 'array'. Now, I iterate in bunch of twos (because we have a pair, the state followed by the capital). For each state, we simply have to get the substring between the single quotes. For each capital, we simply need the substring between the double quotes.

daguang · Accepted Answer · 2017-07-03 06:46:15Z

0

You can use regular expression to replace the "[,],\" with '', then use split method to the replace result.

var obj = [
    [
        "Congo",
        "\"Candice Levy\""
    ],
    [
        "Panama",
        "\"Xerxes Smith\""
    ],
    [
        "Tanzania",
        "\"Levi Douglas\""
    ],
    [
        "africa",
        "\"Uriel Benton\""
    ],
    [
        "Gabon",
        "\"Celeste Pugh\""
    ],
    [
        "Syrian",
        "\"Vance Campos\""
    ],
    [
        "Kyrgyzstan",
        "\"Wanda Garza\""
    ]
];
var expectVal = JSON.stringify(obj).replace(/[\\\"\[\]]/g, '').split(",");

answered Jul 3, 2017 at 6:46

daguang

1

Comments

shaochuancs · Accepted Answer · 2017-07-03 06:58:55Z

0

Here is an example using String split:

'use strict';

var s = "[['Congo' , '\"Candice Levy\"'],['Panama' , '\"Xerxes Smith\"'],['Tanzania' , '\"Levi Douglas\"'],['africa' , '\"Uriel Benton\"'],['Gabon' , '\"Celeste Pugh\"'],['Syrian' , '\"Vance Campos\"'],['Kyrgyzstan' , '\"Wanda Garza\"']]";

var arr = s.split(/]\s*,\s*\[/);

var resultArr = [];
for (var i in arr) {
  var stateAndCap = arr[i];
  var stateAndCapArr = stateAndCap.split(/\s*,\s*/);

  var state = stateAndCapArr[0].split('\'')[1];
  var cap = stateAndCapArr[1].split('"')[1];
  resultArr.push(state);
  resultArr.push(cap);
}

console.log(resultArr);

edited Jul 3, 2017 at 6:58

answered Jul 3, 2017 at 6:45

shaochuancs

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Comments

Ananth Cool · Accepted Answer · 2017-07-13 06:43:17Z

0

We may solve it by split the entire string by comma operator then remove the unwanted symbols from each string.

    var str = "[['Congo' , '\"Candice Levy\"'],['Panama' , '\"Xerxes Smith\"']]";
    var stringArray = str.split(",");
    var result = [];
    for(var i = 0; i < stringArray.length; i++){ 
        result[i] = stringArray[i].replace(/[^a-z0-9\s]/gi,'').trim(); 
    }
    console.log(result);

edited Jul 13, 2017 at 6:43

answered Jul 3, 2017 at 10:04

Ananth Cool

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1 Comment

Ananth Cool Over a year ago

To avoid forloop use underscore.js map function to iterate the loop with more efficient.

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