I’m currently trying to dynamically change the background gradient of a background with an image. I’m using the following CSS properties to add the image and the gradient. CSS: The code here is pretty much the same with the only exceptions being the cross-browser compatibility. The only thing I wo…
Tag: javascript
How to find the size of the file in Node.js?
I am using multer for uploading my images and documents but this time I want to restrict uploading if the size of the image is >2mb. How can I find the size of the file of the document? So far I tried as below but not working. Can anyone please help me? Answer To get a file’s size in megabytes:
Sequelize: Find All That Match Contains (Case Insensitive)
I want to use sequelize.js to query a model for records with a contains restraint. How do I do that? This is what I have right now: but I get the following error: How do you use a contains query in sequelize? Answer EDIT In order to make it case insensitive, you could use the LOWER sql function, but previousl…
Jquery datatables button not working?
Here is my screenshot : This is my following code: I’m trying to use this code from https://datatables.net/extensions/buttons/custom. I dont why my button button didn’t show up. I was wondering why this code is not working. Can anyone please tell me how to use ‘jQuery DataTables Button’…
React – Triggering a component method from another component, both belonging in the same render()
I have a custom component Foo, whose ‘bar’ function I want to trigger from the outside: I am rendering Foo along with a button whose purpose is to trigger Foo.bar(): Things I have tried: Moving <Button > inside Foo, then adding onClick of <Button/> in Foo’s constructor — th…
React.js implement menu [highlight active link]
The following React.js code renders a navbar with two links named ‘about’ and ‘project’. On page load the ‘about’ link is active and colored red. When the other link is clicked the state of the navbar is set to ‘project’, ‘about’ link style is set ba…
How to show No Data Available Message in highcharts
Can we show a message using highcharts.When the data is not available? we have to show a message Example : No Data Available. If we have data hide : No Data Available message . in highcharts dynamically Answer You can use Highcharts Chart Renderer Here’s an example in JSFiddle
How to check javascript is enabled or not in Node JS server side code
Is this possible to check this using server side code in Node js? OR if not then how can I use conditions like if-else: In a node.js project, I have to check that JavaScript is enabled or not on browser of user. I know that we can check this using <noscript> tag at client side code(I am using jade). On
Why my javascript looping return error missing ‘of ‘ after for
I have code like that but I see an error on the console SyntaxError: missing ‘of’ after for Does anyone know why? I did search on Google, but nothing can tell me why. Answer Obviously, You will get incorrect syntax. Seems you want to create an array so use Array.map()
Text response is empty when using fetch
The following code: is outputting: If I use curl: I get a token in text form back (length != 0). And if I output the response header via: I get: Why am I getting no text via fetch? Answer Remove mode: ‘no-cors’. When you use no-cors mode, you’re explicitly specifying that you want an “opaque respo…