Static method mimicking Array.from method not working in Javascript
I am trying to solve the exercise "Groups" in Eloquent Javascript (https://eloquentjavascript.net/06_object.html just ctrl+f the word "Groups). To summarize I have to create a class, similar to Set,...
View ArticleCorrect javascript call to upload file via web api
I have a javascript function as so:function uploadFiles(PIRid) { var fileInput = $('#incidentFiles'); var fileCount = fileInput[0].files.length; for (i = 0; i < fileCount; i++){ var Obj = new...
View ArticleHow do I generate solutions to simple mathematical equalities?
I have a set of elements that have X and Y values. Each element represents a thing on the screen. I am trying to position things on the screen according to rules. I also have a set of rules, leftOf,...
View ArticleIgnore JSON parsing error if a field returns TypeError
This feels like a totally straightforward try/catch issue, but as a total javascript noob I am clearly missing something.I am trying to parse data from the Cleveland Museum of Art open collections API....
View ArticleHow can i get the value from a in my Controller Laravel 6.0
Im trying to save the value from a select that has the id's from tables in sql, but i dont know how to get the value from the select in my controller, i want to put my foreign key= the value of the...
View ArticleWebSocket connection with nodejs express
I'm trying to connect to websocket with express but it doesn't connect. I'm trying to send a message to HTML page with WebSocket.My Server Side var expressWs = require('express-ws')(app);...
View Articlejs compare elements in arrays use (.map .filter .reduce)
I got two arrays, and I need to compare elements in this arrays and return array with counters for each element. I need to use ".map"".filter" or ".reduce" function. Can any one show me how I can do...
View ArticleClik here to view.
Can a unique Twilio number be used simultaneously by multiple agents?
Yes, I know that it is possible to connect a client who calls to a number with multiple agents and whoever accepts the call can continue with it.But I want to know if it's possible that 2 or more...
View ArticleHow to pass arguments to strings in eval() javascript?
Let we have the user input stored in an variable t,let t = '[1,2,3,4].map(e=>"<div>{{ e }}</div>")';.Whereby a user is forced to write this syntax to execute, so on t =...
View ArticleError: Value for argument "value" is not a valid query constraint. Cannot use...
I am getting this error when i am exporting modules from file A and importing in file B and when i am running file B it gives that error.that is related to Firebase cloud Firestore.const mailEvents =...
View ArticleTrigger a keypress event manually for a combination like Ctrl+P in...
How to trigger a keypress event manually for a combination like Ctrl+P in angular/javascript?I have tried using the window.print() method. But unfortunately, I have some css styles to be applied for...
View ArticleFiori app - getContext on Detail page SAPUI5
I am on my way building a Fiori like App using SAPUI5. I have successfully built the Master page, and on item click I set the context and navigate to Detail page. The context path from Master page is...
View ArticleExcel data into html output
I have managed to find out how to pull data from a excel file into HTML. I am now trying to look how to search for values within a set of cells. Does anyone know how to achieve this?Thanks in advance!
View ArticleSending messages to multiple numbers using twilio Passthrough API
I am using twilio to send messages to multiple phone numbers in a single API call.client.notify.services(notifyServiceSid) .notifications.create({ toBinding: JSON.stringify([ binding_type: 'sms',...
View ArticleCalculations with Radio Buttons
I am trying to create this JavaScript calculation with radio buttons. So If the user Checks the "delivered to home address" then the value of £5.99 will be added into the total box, but if the user...
View ArticleWhy is GraphQL not computing the correct result?
When the "appID" value is first passed on the form, GraphQL returns an expected value. Later when "profileID" is passed in addition to the appID, the computed result is unchanged.Also, wanted to...
View ArticleExecute a Javascript function immediately after Google Analytics...
How do we make a web page to execute a JavaScript function immediately after Google Analytics creates/updates all its cookies and the page DOM is loaded.Can it be done with jQuery? How?This function...
View ArticleJavaScript + PHP & SSE - Server Sent Events & MySQL
Am I scalable enough? My goal is to create a MySQL WebRTC module. After researching all of the alternatives for server-to-client communication, SSE is good for pushing MySQL notifications. I want to...
View Articlehide and show names using react hooks
I am new to react hooks,in my app initially, all the names of the users should be hidden.later when I click each user it should show the name.so I used the show and setshow.when I tried to print the...
View ArticleGet true image dimensions in JavaScript after source change [duplicate]
This question already has an answer here:JavaScript: Get image dimensions 7 answersMy question is how do I obtain true image resolution (WxH in pixels) after I change source. The problem is thatvar img...
View Article