CODEWITHSUNDEEP
javascriptaxios
Mee
Mee

Reputation: 13

Why can't use data after post (React JS)

i'm post data to nav and get it after post i use

.then(data => console.log(data.PathPDF))
.then(data => window.open(data.PathPDF, '_blank', 'noopener,noreferrer'));

in the first line i can get value in console but in window.open get error "Cannot read property 'PathPDF' of undefined"

Upvotes: 0

Views: 33

Answers (1)

Nicholas Tower
Nicholas Tower

Reputation: 85012

.then(data => console.log(data.PathPDF))

Whatever value you return from your .then callback becomes the value in the resulting promise. console.log returns undefined, and so that's the value your second .then gets passed in.

Either change this to re-return the data:

.then(data => {
  console.log(data.PathPDF)
  return data;
})
.then(data => window.open(data.PathPDF, '_blank', 'noopener,noreferrer'));

Or just have a single .then:

.then(data => {
  console.log(data.PathPDF);
  return window.open(data.PathPDF, '_blank', 'noopener,noreferrer');
})

Upvotes: 2

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