No doubt that Suspense feature leads to a cleaner code base, but as tidy as it is, it turns to be hard to test. Specifically it is not well documented yet. case: Regular app generated by VUE CLI Tech stack: Vuex, Router, PWA, jest for unit testing Challenge: I made use of Suspense component as recommended as …
Tag: ecmascript-6
How to parse a log string in Javascript to a JSON
I have a console string that looks like this: How can I parse this string to a JSON so that it looks like this: Answer It seems a little bit hard to use Regex, I just use the string manipulation to deal with that, here is the code:
reduce array of array into a flat array of object
I’m stuck at transforming a data structure: How can I produce this? Answer Here is one way to do it with simple reduce,
React, setInterval behavior
Code Sample: https://codesandbox.io/s/romantic-wing-9yxw8?file=/src/App.tsx The code has two buttons – Start and Stop. Start calls a setInterval and saves interval id. Timer set to 1 second (1000 ms). Stop calls a clearInterval on the interval id. The interval id is declared outside the component. The i…
WeakMap with event.target
Edit: turns out nothing is actually wrong with the second snippet (my real code). On one page it works, and on another it doesn’t. Yea for underlying errors. I’m creating a DOM element and giving that DOM element to a WeakMap as a key. Then, with JQuery event delegation/event listener, I’m t…
Convert es6 string in dot into an formData key
Given a JS string how can I convert the string to formData key notation so I can go I try this but I want short code with regular expression Answer Can do this with a simple split() and reduce()
Destructuring a function call
Assuming the following code: EsLint gives out the following error: While the current code is clear and concise, if I still wanted to destructure the code and make EsLint happy, how could I do it ? Answer The docs for this rule say that properties of props should be destructured before using them, so just do t…
!fullResponse?.response?.is_complete does not act as it supposed to do
I am having an issue to understand this: I was thinking it is the same as but it is not and it breaks my code specially when is_complete does not present in fullResponse.response Can anyone explain what this does : !fullResponse?.response?.is_complete and if there is a way to make it act as below? Answer The …
Constant JSON object vales changing in the loop while creating a new object dynamically in javascript
Hello I have a template object as follows: I want to create a dynamic array of the objects from an array as follows: For this I am writing a simple loop as follows: Now I am expecting allData to be: but when I print it is giving me as: Looks like the array values are being overwritten every time. On
Return True If Contains in String in ES6
How do i return true if location.pathname is found in of these strings is found in ES6? Answer You can use Javascript array includes or indexOf function.