separate positive and negative numbers in an array using javascript

Question

I am trying to separate positive and negative numbers in an array using Javascript. But the code Iam trying to use is not working. Jere is the code I was trying to use which I got from Separate negative and positive numbers in array with javascript

var t = [-1,-2,-3,5,6,1]
var positiveArr = [];
var negativeArr = [];
t.forEach(function(item){
if(item<0){
negativeArr.push(item);
}
else{
positiveArr.push(item)
})
console.log(positiveArr) // should output [5, 6, 1]
console.log(negativeArr) // should output [-1, -2, -3]

"This question was caused by a problem that can no longer be reproduced or a simple typographical error. While similar questions may be on-topic here, this one was resolved in a manner unlikely to help future readers." — T.J. Crowder
– T.J. Crowder, Commented Dec 15, 2017 at 14:14
Better use for (const item of t) { … } for the loop so that you don't get confused by the closing }) of forEach — Bergi
– Bergi, Commented Dec 15, 2017 at 14:15
Thanks Mr T.J. Crowder , it worked ....I didnt know it was a typo , thanks anyway — felix
– felix, Commented Dec 15, 2017 at 14:17

Carl Edwards · Accepted Answer · 2017-12-15 14:13:33Z

1

Your missing a closing bracket } in your conditional:

var t = [-1, -2, -3, 5, 6, 1];

var positiveArr = [];
var negativeArr = [];

t.forEach(function(item) {
  if (item < 0) {
    negativeArr.push(item);
  } else {
    positiveArr.push(item)
  }
});

console.log(positiveArr) // should output [5, 6, 1]
console.log(negativeArr)

answered Dec 15, 2017 at 14:13

Carl Edwards

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1 Comment

T.J. Crowder Over a year ago

Typo/non-repro/not-useful-to-others-in-future questions don't need answers, just close votes and comments.

devstructor · Accepted Answer · 2017-12-15 14:25:19Z

0

var t = [-1,-2,-3,5,6,1];

var positiveArr = t.filter((elem) => elem > 0);
var negativeArr = t.filter((elem) => elem < 0);

edited Dec 15, 2017 at 14:25

answered Dec 15, 2017 at 14:13

devstructor

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5 Comments

T.J. Crowder Over a year ago

And if elem is 0? :-)

devstructor Over a year ago

0 is not neither positive nor negative. Just a zero ;-)

devstructor Over a year ago

no problem. Please remeber to mark your question as answered

felix Over a year ago

okay thank you let me do that now , thank you so much again you are so helpful

Donald Duck is with Ukraine Over a year ago

Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you’ve made.

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