dict.get() for javascript to parse fetch data

Question

Is there a way I can do this in javascript?

events_json = events.json()
for detect in events_json.get("detections"):
    print(detect["source_location"])

This didn't seem to work in javascript:

for (let i = 0; i < data.length; i++) {
        console.log(JSON.stringify(data[detections][i][source_location])

Any suggestions to get this working in javascript? I tried following this link but wasn't able to understand how to use it for this: What is the Javascript equivalent of Python's get method for dictionaries

Can you give an example of the data you're using, and add that to the question? It'll help us debug the problem. — Andy
– Andy, Commented Aug 31, 2021 at 1:26
"I tried following this link but wasn't able to understand how to use it for this" Then I don't understand how we're supposed to help you; other people on Stack Overflow already gave their best shot at explaining the concept. — Karl Knechtel
– Karl Knechtel, Commented Aug 31, 2021 at 1:34

Barmar · Accepted Answer · 2021-08-31 01:31:31Z

0

You need to quote detections and source_location so they'll be literals, not variables, just like you do in Python. You can also use . notation in JavaScript for property name literals.

data.detections.forEach(detect => console.log(detect.source_location));

answered Aug 31, 2021 at 1:31

Barmar

789k57 gold badges555 silver badges669 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

user16660683 Over a year ago

I tried using that and that wont work for adding multiple commands. The => seems to stop everything else afterwards:

data.detections.forEach(detect =>      console.log(detect.source_location)     let text = "<b>Device: <b>" + detect.machine_name + "<br>";     let pre = document.createElement('p');     pre.innerHTML = text;     console.log(text)     pre.style.cssText += 'font-size:16px;font-weight:bold; width: 350px; word-break: break-word;'     output.appendChild(pre);     );

I think this is a start so I will google how to use this without the => and that should fix everything

Barmar Over a year ago

If the function body is more than one expression you have to put it in {}.

Barmar Over a year ago

detect => { statement1; statement2; ...}

user16660683 Over a year ago

I was actually going to say that I learned how to fix it by googleing it and found out that I need {} after the =>. w3schools.com/js/js_arrow_function.asp Then I found out that you were kind enough to answer as well. lol Thanks for helping me out here.

Collectives™ on Stack Overflow

dict.get() for javascript to parse fetch data

1 Answer 1

4 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related