I am trying to generate sprial matrix in javascript. question Given an integer A, generate a square matrix filled with elements from 1 to A^2 in spiral order. input : 3 when input is 4 my approach is to create 2d array with 0 value and after that they will fill values. Answer You could take loops for each edg…
Tag: javascript
npm install @material-ui/core got error: Unexpected end of JSON input while parsing
debug.log Answer use : See this https://github.com/npm/npm/issues/19072#issuecomment-345555468 I hope that solve your issue.
Store multiple parameters from different Intents
I have an issue saving multiple parameters from different intents in dialogflow firebase fullfillment. I’ve tried declaring a global variable to store the data there but to no avail . here is what I have so far. I would like to save the parameters from multiple intents to a firebase db Answer You can us…
Get parent data element from dragged element – Drag en drop function
I am trying to retrieve a parent data attribute data-date of the dragged object in JavaScript. So i want to receive the data-date attribute <td> from where the div “drag me” was dragged from. HTML example: I am able to retrieve the dropped data-date attribute, but cant figure out how to retr…
How to change material-ui Textfield label styles in react
I’m new to Material-UI, I couldn’t able to figure it out, how to change the color of the label which is showing in grey color. I want it in black. Can anyone help me with this query? Here is the Code : Here is the code: “https://codesandbox.io/s/fancy-morning-30owz” Answer If you use t…
events.js 167 error in React Installation
I am trying to setup react in my PC. I have completed downloading the reacr modules and am starting to run through local server and these errors occur to me. I know it’s simple error for local server and tried to open the index.html file manually then it didnot show the react logo but instead showed som…
When you chain a property, do you call it?
This question concerns semantics of “property” and “method.” I understand that in JavaScript, a variable in an object is a property and a function in an object is a method. In a Node.js application, I’m passing process.mainModule.filename as an argument to path.dirname(). mainMod…
t[this.activeSeriesIndex].data[0] is undefined in ApexCharts. How to correctly build the series array?
I’m a beginner in Vue and I’m using vue-apex chart to create a chart in my application. I want to display in chart, the values of the two component’s properties “uncorrectAns” and “correctAns” that I compute thanks to a specific method (computeStat()). When I run the …
Issue with splitting string with line break in vue
So I’m trying to set a filter to replace a hyphen with a <br> to spit it onto a new line. I’ve created a filter like this: And then However, this just prints the </br> instead of breaking the line. I’m new to vue so not sure what I’m doing wrong? Answer The problem is not w…
How do you conditional bind v-model in Vue?
In JavaScript, object can optional spread value like this: In React, JSX can optional pass props like this: Now in Vue, how do I achieve optional v-model? I have a textarea like this How can I achieve optional bind v-model? I want to do this because I want to show warning on that textarea when error occurs. W…