Tag: javascript

How to exports many mongoose models modules in node.js

javascript module mongodb mongoose node.js

I have 2 models like this Now I want to export them. First I export Db and everything is fine. I can do an HTTP request with it. However, when I try to export ´the 2nd one outside, it stops functioning. The functions below will return a blank JSON file as a response. This won’t work either. It returns a…

How to reconstruct Json

algorithm javascript json typescript

I am currently having problem on modifying a Json schema, the schema is below: I know this can be done using recursion, and I have tried to fetch the required item(code is below), but I have no idea how to put the required item back into properties and change to boolean value. Thanks in advance. I want to put…

how to put a file in state variable with react hooks

ecmascript-6 javascript reactjs

I’m trying to upload a picture using react hooks however I’m getting the following error: when I change the onChangePicture to the picture variable is undefined, any help would be appreciated. Answer I think you meant to do: This will concatenate the first file to all current files. Remember to us…

Populate a set of text areas with jQuery eq() from localStorage

javascript jquery

I have a set of text areas and have set them to save in localStorage. I’ve been trying to use the following code to retrieve those values and put them back into the text areas when the browser reloads. If I log (‘textarea’).eq(i).val() it correctly returns an empty string which is the value …

How to add a string to an array and return the string

arrays for-loop javascript loops

Build a function forLoop. It takes an array as an argument. Start counting from 0, and, using a for loop, add a string to the array 25 times. But not just any string. If your i value is 1, add the string “I am 1 strange loop.”; if your i value is anything else, add the string “I am ${i}

@Input and @Output are always undefined in Angular-Cli

angular angular7 javascript typescript

Whatever values are inside the individuals are printed without issues but whatever is obtained using @Input or @Output is not displayed. child.component.ts parent.component.html Is there anything goes wrong in syntax? The Log always show ‘undefined’ in all cases. Thanks Answer I think this is tryi…

Using variable outside of a javascript function

javascript jquery

I am redesigning the select dropdown of a site and I am using a jQuery plugin called ddSlick. However, I can’t seem to capture a variable I need outside its function. In the code below I can’t seem to have the second console.log(build) show what I get in the first console.log(build). I get undefin…

How to I save checkbox value with ajax in laravel?

ajax javascript laravel

I’m trying to save the value of the check box in laravel. I can save all the text fields and all the code works. When I try to save the value of the checkbox the code breaks. Here is what I’ve tried. All the help is appreciated. Here is my controller I’ve Here is my HTML Here is my script

Echarts.js: Detect a click on a subset of data

echarts javascript vue.js

I want to detect a click on a particular subset in a bar chart. As I want to init a new chart after the click, with the data from the clicked subset. Currently when I click on chart bars, I get data of the whole chart and can’t retrieve data of just one bar. Here is what I have: Answer