CODEWITHSUNDEEP
javascriptmap-function
Rilcon42
Rilcon42

Reputation: 9763

splitting the result of a map returns unexpected array output

I have been trying to solve this for far too long. Can someone explain why none of my attempts below will produce the value I expected?

goal is: transResult=[[xy,zy],[xz,zz]]

let allData='xy|zy\r\nxz|zz'
console.log('first split: '+allData.split(/\r?\n/)[0])     
//first split: xy|zy
let transResult=allData.split(/\r?\n/).map(x=>x.split(/|/))
console.log(transResult)
//[ [ 'x', 'y', '|', 'z', 'y' ], [ 'x', 'z', '|', 'z', 'z' ] ]

If I split one element eg 

console.log('xy|zy'.split('|'))

I get the expected value of [ 'xy', 'zy' ] What is happening with the first map() that is screwing up the result in the first section of code?

Upvotes: 0

Views: 79

Answers (1)

n8o
n8o

Reputation: 1943

| is a special character so you have to escape it using \:

const allData='xy|zy\r\nxz|zz';  
const transResult=allData.split(/\r?\n/).map(x=>x.split(/\|/));

console.log(transResult);

Upvotes: 1

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