Trying to parse mutiple array of strings to numbers

Question

Is there a way I can iterate through each Oracle endpnt array and parse the strings to numbers and still keep the Oracle endpnt arrays in order.

Code

var oracleTitle= ['oracle1','oracle2','oracle3','oracle4']
var oracleEndpnt = [['1','3'],['1','2'],['1','3'],[]]


function Oracle(name, endpnt) {
  this.name = name;
  this.endpnt = endpnt

}

var oracles = []

for(var i=0;i<oracleTitle.length;i++) {

  oracles.push(new Oracle(oracleTitle[i],oracleEndpnt[i]))

}

console.log(oracles)

Result

[
  Oracle { name: 'oracle1', endpnt: [ '1', '3' ] },
  Oracle { name: 'oracle2', endpnt: [ '1', '2' ] },
  Oracle { name: 'oracle3', endpnt: [ '1', '3' ] },
  Oracle { name: 'oracle4', endpnt: [] }
]

Does this answer your question? How to convert a string to an integer in JavaScript? — Heretic Monkey
– Heretic Monkey, Commented Nov 13, 2020 at 20:37
Just change Oracle to do the map: this.endpnt = endpnt.map(i => +i); — Heretic Monkey
– Heretic Monkey, Commented Nov 13, 2020 at 20:38
I took everyone's answers into consideration for different variations to solve this issue thank you. — astromodem
– astromodem, Commented Nov 13, 2020 at 21:31

Wai Ha Lee · Accepted Answer · 2020-11-14 15:06:43Z

1

If you dont want to change all the code, you can run a map for the second array

var oracleTitle= ['oracle1','oracle2','oracle3','oracle4']
var oracleEndpnt = [['1','3'],['1','2'],['1','3'],[]]


function Oracle(name, endpnt) {
  this.name = name;
  this.endpnt = endpnt

}

var oracles = []

for(var i=0;i<oracleTitle.length;i++) {
// Change this part
  oracles.push(new Oracle(oracleTitle[i],oracleEndpnt[i].map(num => parseInt(num))));

}

console.log(oracles)

edited Nov 14, 2020 at 15:06

Wai Ha Lee

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answered Nov 13, 2020 at 20:36

Victor Shinobi Gakiya

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4 Comments

maioman Over a year ago

Destructuring/Reaggregating the array you use as the second parameter to the oracle constructor is useless.

astromodem Over a year ago

Thank you so much the example I provided was mock data but I used your solution with the .map() for my main issue on a bigger scale and it worked perfectly. If I'm not mistaken we're using the map() function passing it the num parameter that would target each item in the array then parsing each item in the array and creating a new array based on the new results?. I just don't want to plug it in and not understand correct me if I'm wrong. @VictorShinobiGakiya

Victor Shinobi Gakiya Over a year ago

@KimaniKelly That's correct, we're mapping here the array that corresponds to the parsed title, in this case since they are the index of the array is the same as the index of the title [i], you won't have a problem. If you were to have a different number of titles / arrays, this method might cause you troubles

astromodem Over a year ago

I applied this method inside a for loop that would iterate over 90 arrays to parse multiple bytes32 hex string to a legible string and the outcome worked perfectly. @VictorShinobiGakiya

maioman · Accepted Answer · 2020-11-13 20:33:14Z

1

If I understand correctly this should do:

var oracles = [
  { name: 'oracle1', endpnt: [ '1', '3' ] },
  { name: 'oracle2', endpnt: [ '1', '2' ] },
  { name: 'oracle3', endpnt: [ '1', '3' ] },
  { name: 'oracle4', endpnt: [] }
]

var r = oracles.map(x => {
  x.endpnt = x.endpnt.map(z => Number(z))
  return x
})

console.log(r)

answered Nov 13, 2020 at 20:33

maioman

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1 Comment

astromodem Over a year ago

Your code also was able to fix my issue thank you. @maioman

Slai · Accepted Answer · 2020-11-14 15:18:16Z

0

var oracleTitle= ['oracle1','oracle2','oracle3','oracle4']
var oracleEndpnt = [['1','3'],['1','2'],['1','3'],[]]
function Oracle(name, endpnt) { this.name = name; this.endpnt = endpnt }

var oracles = oracleTitle.map((s, i) => new Oracle(s, oracleEndpnt[i].map(Number)))

console.log( JSON.stringify(oracles) )

answered Nov 14, 2020 at 15:18

Slai

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