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Passing JSON data from Flask to JavaScript

I am trying to pass a JSON data from flask to JavaScript. The code I tried is from: Passing a JSON object from Flask to JavaScript The steps below are what I did : I first got my data from postgreSQL in Python I transformed the data format from DataFrame to JSON I modified @Ilya V. Schurov’s code And th…

limited number of dynamic generated images by using vue

I wanted to make a div of random positioned icons and this is what i made so far. Can we make this to generate only limited number of images like 20 images and not unlimited. If you have better way to make something like this, then i would be really thankful. Thanks Answer Introduce variables for the total, t…

Need help to match regex with conditional concatenation (JS)

I need help to accomplish the use cases of this regex: https://regex101.com/r/HmDQHJ/3/ Right now, my issue is that I need to match this: But also fail on this: Can someone help me to accomplish this? Thank you! More context: We have an old crawler that goes project source and looks for usage of a function ca…

Dynamic change of global variables in react native

I have an mqtt client inside my react native app and it constently receives data from a broker. This data is being used in many different screens/components differently (I have 1 class which extends React.Component per screen). For example I show the data I receive from topic x on screen 1 while I show the da…

Uncertainty with the !! operator (double negation)

I saw in a pull request that the double negation operator (!!) is used for the focus attribute of a text field as follows: As far as I know, the operator converts everything to a boolean. If it was falsy (for example 0, null, undefined,..), it will be false, otherwise, true. In my case, i.e. if value = 0, the