I need to upload an image to NodeJS server to some directory. I am using connect-busboy node module for that. I had the dataURL of the image that I converted to blob using the following code: I need a way to convert the blob to a file to upload the image. Could somebody help me with it? Answer This function
Author: admin@master
JavaScript registering events handlers externally
I have decided to remove all calls to JavaScript event from the html form elements to an external file. In doing this i registered an event for each item. However access the elements attributes using ‘this’ can no longer be used what I have decided to use is event.target.value for value attribute …
Simple calculator in HTML and JavaScript
I have to write a calculator in HTML. I really can’t find what is going wrong and it does not show the results. I can’t find something wrong can you help? I’m running it in Chrome. JavaScript File and and the HTML: Answer Things to fix: 1) Assign to value, not innerHTML, when referring to an…
Storing an object in state of a React component?
Is it possible to store an object in the state of a React component? If yes, then how can we change the value of a key in that object using setState? I think it’s not syntactically allowed to write something like: On similar lines, I’ve another question: Is it okay to have a set of variables in a …
Convert DD-MM-YYYY to YYYY-MM-DD format using Javascript
I’m trying to convert date format (DD-MM-YYYY) to (YYYY-MM-DD).i use this javascript code.it’s doesn’t work. Answer This should do the magic
Node.js, Express, EJS – Active class on current page in navigation
I’d like to render a ‘current’ class on each of my navigation links depending on which page I’m on in my layout.ejs template. Currently, my express controller index looks like this: And in my layout.ejs I have the following, which I’d like be rendered dynamically. Any ideas of ho…
Increment localStorage value by one
I am working on an attempted log in feature to our application. They fail three times it kicks them out altogether. To keep count of how many times they attempt I thought I would use localStorage because I can easily manipulate it. However, I am having trouble incrementing the value when they fail to authenti…
How to initialize a boolean array in javascript
I am learning javascript and I want to initialize a boolean array in javascript. I tried doing this: But it doesn’t work. After googling I only found this way: But I find this a very difficult way just to initialize an array. Any one knows another way to do that? Answer You were getting an error with th…
ng-click not working with ng-if
Why does the second button not work, when ng-if is used? I want to realize a button that is present only when the model value is set / not “”/ not null. Template: Controller: To play around: JSFiddle Answer Use ng-show Instead of ng-if. That should work. Fiddle
jQuery events function for ‘html’ but not CSS
Nothing happens. No errors in the console are shown. No matter what event – click, hover, etc – they only work if I apply them to the ‘html’ tag. First part of the code works perfectly, I mean the .css. What kind of sorcery is this? Answer Grrr… I figured it out. The whole code n…