Skip the same string value

Question

var data = "20 FIXED\r\n7 FIXED BUT FX KFY 200\r\n 9 FIXED BUT FZ MX KFY 150 KMZ 200\r\nLOAD 1 LOADTYPE Dead  TITLE DEAD";


function pullBetTwoStrings(data, str1, str2) {

 return data.split(str1)[1].split(str2)[0].trim();
}

var support_FBnode_data = pullBetTwoStrings(data, "FIXED", "LOAD" );
console.log(pullBetTwoStrings(data,"FIXED", "LOAD"));

I have a list of string in this kind of format:

var data = "20 FIXED\r\n
           7 FIXED BUT FX KFY 200\r\n
           9 FIXED BUT FZ MX KFY 150 KMZ 200\r\n
           LOAD 1 LOADTYPE Dead  TITLE DEAD"

How do i get the middle ones only? I want to achieve like this:

7 FIXED BUT FX KFY 200
9 FIXED BUT FZ MX KFY 150 KMZ 200

I have a code below that i use in order to get the in between data but it stops whenever it reaches the FIXED string again.

function pullBetTwoStrings(data, str1, str2) {

 return data.split(str1)[1].split(str2)[0].trim();
}

var support_FBnode_data = pullBetTwoStrings(data, "FIXED", "LOAD" );

so the above codes give me the result of 7 cause it is in between of Two FIXED strings.

split into array ... pop and shift ... that will get rid of first and last ... x = data.split('\r\n'); x.shift(); x.pop(); ... now x has the middle lines — Jaromanda X, Jun 28 '18 at 05:57
By the way Anon, your code works if you use "20 FIXED" instead of "FIXED" but obviously you must be sure that 20 is only on the first line... — Aris2World, Jun 28 '18 at 12:18

NullPointer · Accepted Answer · 2018-06-28T06:12:59.227

1

Below are the steps to achieve this:

Step 1.Convert string data to array by splitting with \r\n.

Step 2. Use array.shift(); This removes the first element from an array and returns only that element.

Step 3. Use array.pop(); This Removes the last element from an array and returns only that element.

var data = "20 FIXED\r\n7 FIXED BUT FX KFY 200\r\n 9 FIXED BUT FZ MX KFY 150 KMZ 200\r\nLOAD 1 LOADTYPE Dead  TITLE DEAD";


function pullBetTwoStrings(data) {
     var result=data.split("\r\n");
     result.shift();
      result.pop(); 
     return result;
}

console.log(pullBetTwoStrings(data));

edited Jun 28 '18 at 06:12

answered Jun 28 '18 at 06:05

NullPointer

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your explanation is very informative mate! Glad to see someone help out – Anon Symphony Jun 28 '18 at 06:18
@AnonSymphony thanks..please upvote if found useful for future reference – NullPointer Jun 28 '18 at 06:19
how do i extract a string if it's in between of a long string say there are additional string at the start and at the end? – Anon Symphony Jun 28 '18 at 07:08
You need to use regEx:https://stackoverflow.com/questions/1707299/how-to-extract-a-string-using-javascript-regex – NullPointer Jun 28 '18 at 07:20

score 0 · Answer 2 · answered Jun 28 '18 at 06:46

If your string pattern is always the same, you can use the Regular expressions like this:

var a = "20 FIXED\n\r 7 FIXED BUT FX KFY 200\n\r 9 FIXED BUT FZ MX KFY 150 KMZ 200\n\r LOAD 1 LOADTYPE Dead  TITLE DEAD";

if (/\d+\sFIXED BUT(\s|\w+|\d+)+(\n\r)/g.test(a)) {

    var result = /((\d+\s)(FIXED BUT)(\s|\w+|\d+)+(\n\r))/g.exec(a);
    console.log("this is result: " + result[0]);
}

/*this is result: 7 FIXED BUT FX KFY 200

9 FIXED BUT FZ MX KFY 150 KMZ 200*/

score 0 · Answer 3 · answered Jun 28 '18 at 12:13

If you don't want to end with an array of string but with a string your can use String.slice as below:

var data = "20 FIXED\r\n7 FIXED BUT FX KFY 200\r\n9 FIXED BUT FZ MX KFY 150 KMZ 200\r\nLOAD 1 LOADTYPE Dead  TITLE DEAD";
var innerData = data.slice(data.indexOf('\r\n') + 2, data.lastIndexOf('\r\n'));
console.log(innerData);

Skip the same string value

3 Answers3