I have a data tree structure with children: Any child data object can have more children as shown in the above data. This represents a DOM structure that a user could select an item from to add a child to. I have a known text title of the selected item from the DOM as well as the data the user
Tag: ecmascript-6
Using already created functions inside a new Javascript function
I’m beginner, so this question might be silly. I had to do 4 Javascript Function, I will put them below Now i have to create the last function, which does: Applies Half function on the parameter I’ve given to the new function(a), stores is in a new variable(result), result becomes parameter for th…
Why is Babel 7 not compiling node_modules files?
I have error in IE11 SCRIPT1002: Syntax error (problem with class syntax). My simple code with 2 lines: I wan’t that my babel7 compile class into ES5 code I have tried write .babelrc file : and https://babeljs.io/docs/en/babel-plugin-transform-classes haven’t fixed too Update : I have tried use @b…
javascript implementation of lodash “set” method
Found this excellent code for _.get vanilla js implementation: Now I’m looking for _.set implementation, any help would be appreciated. Answer I think this could cover it: It is a bit more complex than get, because there is some logic needed to create missing parts of the path in the object, to overwrit…
behavior of arrow function vs normal function in onPress method
‘m learning native react and learning more about javascript, so I still do not understand many things about its behavior. I have created a button component, using TouchableOpacity, and its props onPress. For it to work, I must send the function I want to execute as a props, but here I have fallen due to…
Length of Array of Objects in JavaScript
I understand that finding the length of a JS object has been answered extensively here With one of the suggested solutions being Object.keys(myObj).length However, I’m struggling to find out how can I find the length of all properties contained on an array of objects. ie: Object.keys(users).length //3 G…
ES6 modules in Chrome
I’m trying to use ES6 modules in Chrome. From all the examples I’ve looked at the following seems to be the right way to do it, but when I run it in Chrome’s developer tools I get this error message… uncaught SyntaxError: Unexpected token { …highlighting the import statement in t…
ES6: fire React function
This is the code: What I am trying to do is to fire the updateNews code from render: But keep getting this error: Uncaught Error: this.updateNews is not a function Answer You were not calling the functuion Note: You do need to bind because you use arrow function.
Displaying images from fetch API call Node/React
Im trying display images im fetching from API btw url is defined Gallery.js with or without the regex /[blob:]{5}/gi it is only displaying the alt prop and not the image. The image is received and the get call is successful but the objectURL url is not working. Any help? Answer const {image} = this.props.phot…
Error: Cannot use GraphQLSchema “[object GraphQLSchema]” from another module or realm
Given the following code: I get this error: Error: Cannot use GraphQLSchema “[object GraphQLSchema]” from another module or realm. Ensure that there is only one instance of “graphql” in the node_modules directory. If different versions of “graphql” are the dependencies of o…