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JAVASCRIPT QUESTIONS

Error cannot be caught with Express.js and gridfs-stream
Error cannot be caught with Express.js and gridfs-stream
wish of those help try/catch won't work because the error is happening in a different tick (asynchronously). Perhaps you could listen for the error in the router instead?
TAG : javascript
Date : November 09 2020, 03:01 PM , By : Steve Howard
Tooltip or comment for select options
Tooltip or comment for select options
it helps some times Take a look at this, it works well with bootstrap select. The bootstrap select is an unordered list of your select options.
TAG : javascript
Date : November 09 2020, 03:01 PM , By : hashtag hashtag
Is it good that Kotlin allows the extension of existing types?
Is it good that Kotlin allows the extension of existing types?
seems to work fine No this is not an antipattern. In js its an antipattern because js is dynamic and therefore changing a prototype changes how code works at runtime making it an antipattern. This is also extremely dangerous based on how the in opera
TAG : javascript
Date : November 09 2020, 03:01 PM , By : Bubba
Datepicker not show on Bootstrap popover
Datepicker not show on Bootstrap popover
like below fixes the issue You can used your popover html content in data-content='' attribute
TAG : javascript
Date : November 09 2020, 03:01 PM , By : Ezscher
alert after click chip in materialize in Angularjs
alert after click chip in materialize in Angularjs
I wish did fix the issue. I have the following chip with materialize: , Use event
TAG : javascript
Date : November 09 2020, 03:01 PM , By : Mohamad El Bayat
form.$invalid is not working for angular ui date picker
form.$invalid is not working for angular ui date picker
it should still fix some issue You have errors with your date parsing logic, Change your function to this.
TAG : javascript
Date : November 09 2020, 03:01 PM , By : Darian Kinross
Change Undefined to Empty String
Change Undefined to Empty String
To fix the issue you can do Here is the solution that worked for me:You can simply use ifstatements in the .getData function around your variables to not allow the undefined to run in the EXIF.JS library. Note this code is usually written in the scri
TAG : javascript
Date : November 09 2020, 03:01 PM , By : M.Medic
Trouble rendering html in react
Trouble rendering html in react
should help you out I've been trying to render html in my react code, however each time I start my page and click 'signup' I get the 'login' view. Is there something wrong with my linking? , You can try the following.
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Tuv01
Get document size in Cosmos DB
Get document size in Cosmos DB
I wish did fix the issue. If you get (or query) a document, you can then look at the headers that come back, specifically x-ms-resource-usage, which will contain a documentsSize attribute (representing a document's size in kb).In node/javascript, you
TAG : javascript
Date : November 08 2020, 03:01 PM , By : maildia ailwad
How to sort by custom field in datatable?
How to sort by custom field in datatable?
this will help You can keep the order of the statuses in an array and check the position (index) of them in the array in order to switch or not. I've changed the w3school code a bit.
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Bill R.
Using the promise constructor to send back a value to the server
Using the promise constructor to send back a value to the server
fixed the issue. Will look into that further Inside your .then() handler, you just issue a new request and return that promise, chaining it to the first:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Bobby Barnes
Google chart :Create dynamic data view columns
Google chart :Create dynamic data view columns
this will help just need to build an array of the column definitions since the calculated columns are objects with functions (calc),
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Glenn Schmelzle
d3 domain y not animating during legend toggles
d3 domain y not animating during legend toggles
it fixes the issue There is a bug in this chart trying to morph into series "BB" --- I am not sure why the y domain is not morphing. , You are not updating the y axis in update function.
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Colby Allen
How do I make an object with a given key and value?
How do I make an object with a given key and value?
I wish this help you I am trying to create a function that returns a new object with a key–value pair. I am getting the key and value from the first and last elements of an array. I can get the function to return the elements that will make up the ke
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Margarita Rojas
Remove all elements with a certain child (nested at least 2 levels in), in vanilla JavaScript
Remove all elements with a certain child (nested at least 2 levels in), in vanilla JavaScript
wish help you to fix your issue You can select such nested elements using ".d1 > .d2 > .d3" selector, and then remove them using removeChild or remove function.
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Gergely Szondy
Why does d3 say some nodes are missing after applying link force?
Why does d3 say some nodes are missing after applying link force?
wish help you to fix your issue I'm trying to follow along with a book called Interactive data visualization for the web. I would like to try to build the force graph described there. Everything is fine when I use this books dummy data, but when I tr
TAG : javascript
Date : November 08 2020, 03:01 PM , By : pixistix
Making a Element White Once Clicked, and Red Once Clicked Again
Making a Element White Once Clicked, and Red Once Clicked Again
this will help It's a bit difficult to work out exactly what you're trying to do without some sample code, but if I understand what you're trying to do correctly, you're trying to alternate a background colour on click.First, you want to select the e
TAG : javascript
Date : November 08 2020, 03:01 PM , By : SAzim
(javascript) Get object keys from array of objects with dynamic properties
(javascript) Get object keys from array of objects with dynamic properties
will be helpful for those in need What's the easiest way to get object keys from array of objects. Ex. , You can map everything to a single array with reduce:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Shilo Babila
Sorting JS array of arrays
Sorting JS array of arrays
hope this fix your issue I have the following Javascript array: , Ugly way:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : roro2
How do I make a command with the length of how many arguments are in the command?
How do I make a command with the length of how many arguments are in the command?
Does that help This may sound weirdly phrased, but I don't know how else to describe it. I'm trying to make a discord bot with a command where certain people can write javascript code to do things with the bot on the fly, but I don't know how to make
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Leigh Forrest
Flip d3js svg line
Flip d3js svg line
it should still fix some issue You have to use a scale, which by the way will fix another problem you have: your data values should not be (or normally will not be) SVG coordinates.This is a basic example of a linear scale:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Stefano Capitanio
Why changeDetectionStrategy.OnPush does not update in @Input attribute change but does update @Output trigger attribute
Why changeDetectionStrategy.OnPush does not update in @Input attribute change but does update @Output trigger attribute
I wish this help you All native events mark the path to the root component for check once. Here in the template of Grandchild Component you're using native click event:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : abdou chaoua
Convert sub-array of objects with key-value pairs into array of arrays
Convert sub-array of objects with key-value pairs into array of arrays
should help you out Looks like a perfect use of Array.prototype.reduce()Looks like you're using ES5, so here's what that would look like as ES5
TAG : javascript
Date : November 08 2020, 03:01 PM , By : user7451842
Protect API routes in Node.js
Protect API routes in Node.js
I hope this helps you . This is not a security measure, just a way to filter the request. For security use other mechanisms like JWT or similar.If the angular app is controlled by you then send a special header like X-Requested-With:XMLHttpRequest (c
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Kevin Kefje
How can I select multiple checkboxes at once?
How can I select multiple checkboxes at once?
will be helpful for those in need I have a html table which is created dynamically. Im adding check box for each row. , Change
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Matthew Krasnick
Populate Query Options with Async Waterfall
Populate Query Options with Async Waterfall
wish helps you Not sure why you are looking to match "after" population when the value of _id is what is already stored in the "user" property "before" you even populate.As such it's really just a simple "query" condition to .find() instead:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : NalydZ
How to have different @Injectable for development and production
How to have different @Injectable for development and production
may help you . Use factory provider for this:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Marie Bartolini
Unhide/hide value in checkbox and group them using javascript
Unhide/hide value in checkbox and group them using javascript
Any of those help Lets start with your if condition its Wrong check you cant select something like this !this this must be like this $(this) Your condition syntax fully wrong in jquery write something like this if(condition){//some action} else {//so
TAG : javascript
Date : November 08 2020, 03:01 PM , By : mohammed ahmed saad
Do I need Redux to display ItemList on the left and ItemContent on the right?
Do I need Redux to display ItemList on the left and ItemContent on the right?
help you fix your problem For a simple app, I recommend you avoid redux (and especially if you’re new to react). I would use react-router and make a component for each “screen” that has a different url. Store the state in that screen and make all of
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Pasgru
How to prevent datepicker help me change previous row value?
How to prevent datepicker help me change previous row value?
should help you out I have got the solution. It's about the binding. I have on change function and after expression, I unbind it from change. Please see the following code for my solution:
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Jacob G
Text only HTML button
Text only HTML button
may help you . To make your background transparent as text only, you need to overwrite the default button css
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Judah Wright
JS- Input type file firing change evt when there is no change
JS- Input type file firing change evt when there is no change
it should still fix some issue This is a Chrome feature, where when the user clicks "Cancel" it actually clears the input from what has been set before.IMO, a "Clear" button would have make more sense, but since the file-picking UI is the one of the
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Edvinas Valentinovič
Disable default touch gestures in Js and Html
Disable default touch gestures in Js and Html
I wish this help you i figured it out. the event.preventDefault() doesnt work at all but using this i got it to work properly. the issue was that i was using that attribute in my canvas instead of the meta so i had . thanks either way.Edit: nope stil
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Ketonal
Create an array of random numbers Return highest number Javascript
Create an array of random numbers Return highest number Javascript
I wish this helpful for you Is there a way to call largestNumber(numbers) instead of largestNumber([numbers]).
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Jay H
Bootstrap 4 - how does automatic Popover re-positioning work?
Bootstrap 4 - how does automatic Popover re-positioning work?
wish of those help There's two parts to this question. How does popper.js know when to update the popovers? How does the popover change position?
TAG : javascript
Date : November 08 2020, 03:01 PM , By : Hantascu Alex
How to pass variables when using multiple module exports which are dependent on the result of another?
How to pass variables when using multiple module exports which are dependent on the result of another?
wish helps you You can try passing callback function as another parameter to getIGYour influencer file will look like this.
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Mohammad Jafariyan
interface property cannot be initialize the date value
interface property cannot be initialize the date value
seems to work fine Typescript interfaces are useful to describe objects but don't get compiled to javascript code and thus initializing anything in an interface won't work.For example, you can use interfaces to ensure an object has certain properties
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Alex Alex
Why does attribute change still cause the @Input to be change in ngDoCheck when change detection is on push?
Why does attribute change still cause the @Input to be change in ngDoCheck when change detection is on push?
hop of those help? You're using ChangeDetectionStrategy.OnPush for the App2 which means that CD will not be triggered for App2 unless the input binding [from1]="from" is updated. So when you update the name property here the name is updated:
TAG : javascript
Date : November 07 2020, 03:01 PM , By : KanDan
How to catch error on http.get
How to catch error on http.get
hop of those help? I have some http.get code that looks like this , you can handle http.get errors by check state error example:-
TAG : javascript
Date : November 07 2020, 03:01 PM , By : bento13
mysql markers not showing on map
mysql markers not showing on map
To fix the issue you can do It is better if you'll just echo your $markers in var markers together with the json_encode() function. After that, you can just create a new js variable var markersJson and the value is JSON.parse(markers) (you need to pa
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Mashael Badawi
How Sinon stubs function of an class that used internally
How Sinon stubs function of an class that used internally
This might help you Since getMyResult() is a class method on your DBUtils class, you need to stub the prototype of DBUtils. Something like this:DBUtils.getMyResult() returns a promise. So you don't need to re-wrap it in a promise in dummyService.getR
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Álvaro Peso García
How can i target a click event to another component in Angular 2
How can i target a click event to another component in Angular 2
help you fix your problem You can use events to communicate between components see the angular docsIn your header component you can add an EventEmitter property to the class
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Ludovico
I'm using electron for the first time and instead of opening the HTML file it takes to to a blank electron page
I'm using electron for the first time and instead of opening the HTML file it takes to to a blank electron page
this will help I'm new to electron and was trying to create a simple code that opens an html file, however instead it opens a blank electron window.
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Sophia Dominguez
Buttons with two different function in one form
Buttons with two different function in one form
Any of those help You should add type="button" to your remove button. Buttons that exist on forms are defaulted to submit types so you should explicitly state that it isn't a submit type.
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Abhishek Parashar
Leaflet throwing "Uncaught TypeError: Cannot read property 'lat' of undefined" when adding new marker to map
Leaflet throwing "Uncaught TypeError: Cannot read property 'lat' of undefined" when adding new marker to map
I hope this helps you . You probably want to instantiate an L.latLng with your coordinates, or pass them as an array, instead of wrapping your 2 coordinates with normal parenthesis (lat, lng):
TAG : javascript
Date : November 07 2020, 03:01 PM , By : hatem
Why are string templates preferred to string concatenation now?
Why are string templates preferred to string concatenation now?
I hope this helps you . Came across this rule in ESLint and am not sure what the reasoning is behind. Is it faster? Less characters? , Depends on the string in question. By popular opinion this:
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Cezar
datatables sorting data with mix numbers and letters
datatables sorting data with mix numbers and letters
around this issue UPDATEAs seen from your fiddle, you can overcome this problem by placing an order type("type":"natural") inside your custom properties that you pass on to columnDefs
TAG : javascript
Date : November 07 2020, 03:01 PM , By : smmakowski
Vue JS 2 data manipulation
Vue JS 2 data manipulation
hop of those help? Your code can't really work the way you described in your answer. you are doing asynchronous operation (ajax call) and try to print the values right after synchronous operation? nope.If you want to console.log(response) , you can d
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Ibrahim Abd El-Aziz
Canceling checkbox's click event prevents checking it?
Canceling checkbox's click event prevents checking it?
hope this fix your issue While an input event listener is running, its effect on the element's state is actually already performed. If event.preventDefault() is called, this change is undone when the listener returns. This allows a checkbox event han
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Zonced
Chart.js 2.7.0 How to add Horizontal scrollbar dynamically, and then remove it
Chart.js 2.7.0 How to add Horizontal scrollbar dynamically, and then remove it
seems to work fine For people that want to know: how to add scrolling and scroll horizontally a chart.js chart and to have it dynamically appear at a certain bar width (in this instance), otherwise there is no scrolling (it fits to window). and to ha
TAG : javascript
Date : November 07 2020, 03:01 PM , By : Dr_Gariban
How to create a javascript array from a SharePoint List?
How to create a javascript array from a SharePoint List?
like below fixes the issue I'd like to convert a sharepoint list into an array where each dictionary in the array has all key values from a given sharepoint record. , I prefer using REST API, with jQuery:
TAG : javascript
Date : November 07 2020, 03:01 PM , By : ali raza
Importing Mousetrap in React project - Cannot read property 'bind' of undefined
Importing Mousetrap in React project - Cannot read property 'bind' of undefined
should help you out Mousetrap has no named export, so your named import statement will result in undefined. You can import the library using:
TAG : javascript
Date : November 06 2020, 03:01 PM , By : jjmugs
Can you turn a CSS background-image into a submit button using JavaScript?
Can you turn a CSS background-image into a submit button using JavaScript?
I wish this helpful for you You can wrap your search icon in tags, that way your image will be clickable and can take the user to the page you want once he clicks on it: Here's an example:
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Rudolf Aelbrecht
Confused at the filter() function and I need an in depth explanation
Confused at the filter() function and I need an in depth explanation
hope this fix your issue filter doesn't return a boolean, it returns an array containing elements of the original array. It decides which elements to include in the result by calling a function that you supply on each element of the array. This funct
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Christophe Zenner
Why are my express router.get URL's with multiple paths rendering text only?
Why are my express router.get URL's with multiple paths rendering text only?
Any of those help add app.use(express.static(__dirname+"/public")); in your server.js. create a new folder called public on your workspace where your server.js exists. Now create styles and images folders inside public and put your css files and imag
TAG : javascript
Date : November 06 2020, 03:01 PM , By : prospidi
Node.js/Javascript Multidimensional Array with dynamic Key
Node.js/Javascript Multidimensional Array with dynamic Key
should help you out Don't use arrays if you're not going to use int indexers. Just use Object for it:
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Ryan Marcus
Show results of a POST to the page
Show results of a POST to the page
like below fixes the issue The bare minimum of what you're looking for would look something like this:Client side
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Lucas Nogueira
submit button for jquery dependent dropdown menu
submit button for jquery dependent dropdown menu
it fixes the issue It seems like all you need to do is add a button with an onclick listener (and some input handling) and read the value from the 3rd dropdown. The button will be disabled until the 3rd dropdown has a value. It will disabled again if
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Zhiqin Huang
Having difficulty in figuring how the anonymous function is called to alert('B!')
Having difficulty in figuring how the anonymous function is called to alert('B!')
wish help you to fix your issue First we have a = a(); which means "execute function a and store any returned value back into a. In this case, the "returned value" is a defined function. In Javascript (and plenty of other scripting languages), you ca
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Nathan
javascript toggle class of child element inside clicked div chrome & Edge bug
javascript toggle class of child element inside clicked div chrome & Edge bug
To fix the issue you can do The problem only happens when you click directly on the icon. In this case, the click event still fires, but e.target is the instead of the so your extremely fragile e.target.childNodes[1]... breaks.You can fix this by usi
TAG : javascript
Date : November 06 2020, 03:01 PM , By : Abdul. Almusaileem

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