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How to access child components value in parent component in React JS

Currently I am using react create app to build my application in my application had three component those are com1, com2, com3 I want to update userId state value in com1 based on com3 will receive props here com2 is child component of com1....

How to solve the Google tag manager error ?

Google tag manager show bellow error in my online shopping site: "https://www.buymobile.com.bd/" "name": "undefined",  "ratingValue": "undefined",  "ratingCount": &quo...

Where in this code should I add custom sizes for the application?

I have created a script within Google Scripts Editor so that when a user clicks on a menu on the toolbar in Google Sheets it brings up an application box where users click to print. However, i'm not sure how I could add custom sizes f...

How to call a service function of child controller inside a function in main controller

I have a a function in client controller and service that is "getClient()" which return a client information. Now I want to resue the function. What I am trying to achieve is that when client click on profile button he can getcl...

Firebase With Facebook

Hello, Im building a web-app using react with Firebase as DB. my plan is to skip the Server writing and working with Firebase on the lowest level of security. I know its very unsecured that way but my priority is the client using React. im ...

How to use webui-popover with dynamically generated table (JQuery)

I have a table outputting some results to the screen in tabular form. For each table row, I have a column with an icon (more). What I want to achieve is that for each icon, on click, it shows a pop-over, similar to what Tidal does. But so far, it...

Which is faster on DOM manipulator? AngularJS or jQuery?

Hi. I am a fresher and a front-end developer. I have just started to use AngularJS a while ago. And I find it a very powerful framework. It's all great! I am also used to jQuery like any other developer. I just want to know which works fas...

Which is the best, most comprehensive and easiest library for Graphs (all in one or separately) based on your experie...

Hey, I am new to JS and trying to integrate graphs in website. Currently I am using only jQuery library for my code logics, so what library should I use for graphs? Any help would be appreciated.

How to eliminate render-blocking JavaScript and CSS in above-the-fold content

Hello Nerds, While creating a project, i found that the pages are rendering very slow. After testing and searching i found that my pages have some blocking CSS resources which are causing delay in rendering my pages. Please help me how to elim...

Which JavaScript frameworks to learn in 2016 according to you?

Hello Nerds,   I am learning JavaScript framework but confused !. :( There were new versions and releases of Frameworks. I don't know which one is best. Any help would be appreciated. Thanks in advance. :)

google maps javascript api - ssl - https - Webview

i have few questions about google map: i make web application based on php, mysql, javascript, jquery, jquery-mobile,Google Maps Directions API, Google Maps Geocoding API, Google Maps JavaScript API, Google Places API Web Service. custo...

How to avoid memory leak with jQuery?

Hello Nerds, I am using jQuery event listeners. As i know jQuery doesn't store any information itself. It stored the information in $.cache object. When ever i call event listner it will create a new entry in $.cache object. How can i get ...

Javascript practices

Hi folks, I am stuck in a javascript program while trying to call a inherit method I created. Any help appreciated.Thanks in advance. ;(function(global){ var Provider = function(){ log('creating Provider instance...'); ...

How do I force view refresh in angular?

Hello Nerds, I am using AngularJS in my front end and I have faced an issue that I modified my model, but it did not refresh the view. How can I force refresh my view? Can anyone please help to come out from this problem. Thanks in ...

Angular1 Binding with Redux

Is it good to use Redux with Angular 1 I want to do Angular 1 Binding with Redux. Is it good to use Redux with Angular 1?

ajax in drupal

how to add ajax in drupal , when i enter student name student detail should display without loading the page, 

Exploring closures in functions in depth

var ClosureDem = function (arg1) { return function (arg2) { return arg1 + arg2; } } ClosureDem("Hello")(" world!");//-> "Hello world!" Recently, I started learning about closures in functions and found a lot of new things f...

Which Calendar scripts do you use and recommend?

Hello, Currently, I am creating a html web page and using jQuery library for js. I need to integrate calendar in my page, which can be used to schedule my events. Please suggest any useful calendar with minimum size. Any help would be...

Use of Redux with Angular1?

Help or Sample Code to Use redux with Angular 1 I have a situation where I have to use Redux with Angular1. Anyone, please help me and explain Redux with Angular1 by providing any sample code.

What is the difference between AngularJS, NodeJS and ReactJS?

Hello Everyone, Can anyone help to know the difference between AngularJS, NodeJS and ReactJS? Any help would be appreciated. Thanks.

How to Communicate Between Two Controllers in Angular?

I have two controllers in Angular, one controller makes an Http call gets data once the data is received I want all the controllers to invokes a call to update their model or refresh view. Any help would be much appreciated.

Please guide to a javascript code packet

Please guide to a javascript code packet which I can use to upload file without refreshing the page and the browser does not support File/FileReader object

Embedded one page slider is not working properly

Hello!   Now I'm working on the project similar to this one here. I cant make the one page slider work properly. I tried on many different way but still it's not working. I wish to make the slideshow start to work when it is pi...

JSON Parser Not prasing the array in JSON

Hi, I have a project I'm working on, and I've run into 2 problems. The first is my JSON parser is parsing correctly for regular objects, but doesn't parse the arrays in the JSON. Secondly, I am trying to implement dependencies i...

prevent form submitting in Jquery ?

how can i prevent submit if i got next :- username is too short first character must a letter user_name is not available invalid E-mail format E-mail is not available password do not match i got other problem password confirmation is not...

send data into php using javascript and ajax

i need to send data into my database using ajax but i don't need to send duplicate data so how can i return false if the username or email already exist in my database or prevent submit also i need to prevent submit if the password fields are...

prevent countdown timer for being restarted

how to prevent countdown timer for being restart when you hit refresh in your browser <div id="quiz-time-left"> </div> <script type="text/javascript"> var total_seconds = 60*10 ; var minutes = parseInt(total_se...

Autofill functionality for website forms

I have a website whose source code cannot be changed.It has several forms which has repetitive fields so for reducing manual filing of repetitive fields i want autofill functionality.I will have another website from where data will be stored and ...

how click ad and my link by single button

I HAVE ADSENSE AD CODE FOR MY WEBPAGE : <!-- Begin BidVertiser code --> <SCRIPT SRC="http://bdv.bidvertiser.com/BidVertiser.dbm?pid=719755&bid=1786221" TYPE="text/javascript"></SCRIPT> <!-- End BidVertiser code --&...

How to make my angular js function to run only one time?

I have this plunker.How to make that function to be executed only one time ? The code is:   <!DOCTYPE html> <html> <head> <script data-require="angular.js@1.1.5" data-semver="1.1.5" src="http://code.a...

How to hide a content on stacked Bar Chart below X - Axis

I have drawn a horizontal stacked bar chart using d3 js in a box frame on jsp page. But the stack bar chart is huge i.e. SVG content is so big that all the bars of the stacked bar chart does not fit in the box and I have to put auto overflow in t...

Ajax calls start failing if my app is inactive; otherwise they work just fine on WiFi

In my Phonegap based hybrid app: Ajax calls start failing if my app is inactive for say a couple of minutes. My connection is WiFi & what happens is ajax calls fail with status 0; but navigator.connection.type still shows ...

Jquery fineuploader update metadata of the file

Hello Guys I used jquery fineuploader to upload multiple files in my web application but fineuploader update the metadata of the file during upload file and original metadata of the file has been lost. I want to extract original metadat...

Ser error message fadeoff on hover of field after submit form.

Hi All Developers, http://www.katjaboehm.de/kontakt/ On this page, after submitting the form. I've setup error message gets fade off (hide) on hover of text field. This form is created using contact form 7. I need same functionality on this...

Compare two numbers

Can you tell me why this isn't working with comparing numbers?? All assistance is truly & greatly appreciated. function init(){ var a = document.getElementById("a").value; var b = document.getElementById("b").value; var com...

help! mobile events recognition

Hey guys! I tried using hammer.js alongside with ngHammer to recognize mobile events but it's not working so hot. distinguishing between tap/double tap is arbitrary and a little fuzzy and some other events weren't working as I expected. Did...

ngCordova oauth facebook

I want to create a facebook login for my ngCordova hybrid app.In backend i use node js.But in client i've saw a plugin which use clientID(app id) from facebook developers.I don't know how to create this client or how to work with this plugin.Doe...

How to build a native menu using ionic cordova?

I'm using ionic to build an hybrid application.I want to have some menus native (my menus are using ionic css and i think are not native).How i can build a native menu and what i should use ?

html/javascript

i need help with this.. if i select province it will give calculation accordingly on button click ..

Display all error message on page loading in AngularJS

Hi When the page loads I see a lot of error message's in every field and then they go away when the page load. It seems odd...is there anyway to not show that first. Thank you

Payment Gateway With Angularjs Application with Java at Backend

Hi, can anyone suggest me the flow of Payment Gateway integration in Angularjs Application with Java at Backend. what is the best approach to do it? Thanks

On paste event in javascript.

I am using a telerik editor control in my web app which by default has On Paste (Ctrl + V) event handler which open a dialog box. It is working in latest version of IE(Edge), Firefox and Chrome. But I need to make it support in IE 7 and 8. In IE ...

How to detect collision between two elements.

Can any one give me the idea. How I can detect collision between 2 dom element. I have got this code form MDN. But can't go thorough it. Please help me. var rect1 = {x: 5, y: 5, width: 50, height: 50} var rect2 = {x: 20, y: 10, width: 10, heig...

Key pressed validation in angularJS

How to validate text field using regex in angularjs, Text field accept only valid input. <input type="text" name="phone"/> Above input text field allow me to enter number only.When I enter alphabet it should not accept.

Ionic auth with express and mongoose

Hi! I'm trying to develop an application.But i'm a little bit confused about auth.I've seen more examples from github but their code are realy difficult and it's very hard to understand it .I need if it's possible,a small working example to under...

Avoid Discrete Polygon Colliders in Spritesheet Animations

Scenario :- I am using a spritesheet with a few frames to run my animations in ImpactJS. As using large number of frames can increase my sheet size. Basically it is a shot playing animation in which I have applied Polygon collider to the bat wit...

Need Spine Plugin for ImpactJS

I have found this cool plugin (https://github.com/aceangel3k/Spine) for using Spine animations (http://esotericsoftware.com/) in ImpactJS (impactjs.com). But this plugin has a lot of bugs mainly scaling of child bones to parent bones. Can You...

How to set high velocity in Box2D

I want to throw an object in Box2d by applying a force vector, But it is limited to a certain velocity even if I Apply Force by a very high value? How can I achieve this ? For Ex:- I have to fire a bullet at a very high speed. var force = new ...

How to access frame numbers in Spine Animations

When using Spine (http://esotericsoftware.com/) JavaScript version. How can I access the frame numbers while the animation is playing as I have to perform some tasks based on them ?

create object and object's combination

I need help in javascript friends I have 3 javascript array. var color = ["red", "yellow", "blue"]; var size = ["xl", "xxl", "xxxl"]; var style = ["cotton", "silk", "jins"]; and i want string like bellow line using javascript or jquery. ...
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