I’m relatively new to React and this is what I’m trying to accomplish: User selects an item from the sidebar. The elementID is lifted up to the parent(app.js). app.js sends it to its child, Graphs. Graphs will create a Graph component and append to its graph array. Is there a better way than this?…
Tag: javascript
How to refer a variable in Node.js from another file
I am using node.js to build an app where I have a lot of static text (may change over months) in the code. I want to move the text in a separate file and refer that file data as a variable in the handler file. E.g. The above is original file code. What I want to do is move the
Why doesn’t TypeScript complain about interface violations resulting from Object.create?
Why do f and j pass type-checking? Is it possible to configure TypeScript so that h passes type-checking but f and j fail? Answer Object.create is designed to return any by Typescript. There has been an issue in Typescript’s Github repository but it’s closed and they do not intend to change it soo…
How do I loop through similar key value pairs(a0,a1,a2) in JavaScript object and generate a new array without the number in the key(a)?
What I have 1.keys: similar key name(such as a0,a1,a2) 2.obj: a lot of similar key-value pairs in one object 3.number: the times similar key-value pairs looped in obj1) 4.arr: a array without the number in the key(only keep “a”, no “a0″,”a1″,”a2”) p.s. “aa…
Using logical OR operator inside a loop to sort an array
I have an array like this: That I am trying to sort based on name and size or color. This is defined like this: I can do sorting like this: But I dont know how to modify the sort so it sorts based on the values from var sorts – so a.size – b.size || a.color – b.color; will be
Vue.js disabled button with condition doesn’t work
I have a data-table in Vue.js component using Vuetify with a input inside a row, and I need to disable a button if the input v-model=”row.item.quantidade” was empty. but doesn’t work. HTML Javascript method in vue.js component Answer The function : should be a computed property and it must b…
Regex: To allow commas in excel file name
I have JavaScript code that reads the content of an excel file. The first step is to assign a regex to a variable of the name regex Then some programming occurs like: At times users submit excel files that in their names, they put commas, and that breaks the regex. I would like to ask for help so that I
Recommendations for developing webview content on Android?
I’ve got a webview component that loads some html and javascript. The html + javascript is fairly large, and is compiled using webpack into a single page (html, javascript and css is all in one document). I’m having trouble figuring out a reasonably efficient approach to developing my web content,…
clone 1 row of divs with another on click
I have 2 rows. Each row has 3 individual DIVs that can be selected (Clicked) by the user. When the the user clicks on any of the DIVs on the first row, there is styling in CSS to change the colour of the individual DIV (column if you like) I would like the corresponding DIV (column) in the 2nd row
Add functions in other folder, to an object in this folder
I want to create an object that would import functions from another folder and it would look something like this: The functions would be inside of a different folder, however, I want to make some sort of importer in which it would make new classes for each new function/file it finds inside of the folder. some…