JS HTML Problem: I want to prevent submit on keypress ENTER and only allow submit on submit button click, but my current js prevent submit for both and if I remove from js then the form auto submit when user is trying to populate the form. Can some one please tell me what is the problem here? example Answer T…
Tag: javascript
Why is extending native objects a bad practice?
Every JS opinion leader says that extending the native objects is a bad practice. But why? Do we get a perfomance hit? Do they fear that somebody does it “the wrong way”, and adds enumerable types to Object, practically destroying all loops on any object? Take TJ Holowaychuk’s should.js for …
Convert integer array to string at javascript
Here is php code: the output is: 中文chinese Here is javascript code: the output is: ä¸æchinese So how should I process the array at javascript? Answer JavaScript strings consist of UTF-16 code units, yet the numbers in your array are the bytes of a UTF-8 string. Here is one way to convert the string, which us…
Can I append an array to ‘formdata’ in javascript?
I’m using FormData to upload files. I also want to send an array of other data. When I send just the image, it works fine. When I append some text to the formdata, it works fine. When I try to attach the ‘tags’ array below, everything else works fine but no array is sent. Any known issues wi…
bootstrap popover not showing on top of all elements
I’m working on a bootstrap site and after updating to bootstrap 2.2 from 2.0 everything worked except the popover. The popovers still show up fine, but they don’t show up on top of all other elements. Anyone have any idea on why the behavior of the popover changed, or how I can fix it? Thanks. Ans…
Access user email address in Meteor JS app
I am building an app using Meteor and need to access the stored email address of a logged-in user. I am currently using: to access the user. However, I am only able to access the id. The email address is stored in a nested object that looks like this: I have tried various ways to traverse the JSON object but
InfoWindow & GeoCoder
I have an issue with getting longitude and latitude values geocoded and then display the relevant address in an info window. I have tried multiple ways without success, however I must admit that I am not so familiar with javascript. I am continuously getting back as value : “undefined”. Here is a …
Disabled href tag [duplicate]
This question already has answers here: How to disable HTML links (16 answers) Closed 7 months ago. Although that link is disabled, it’s still clickable. Can I make it not-clickable if it’s disabled? Should I use JavaScript necessarily? Answer There is no disabled attribute for hyperlinks. If you …
calculating the point of intersection of two lines
I have dynamically generated lines that animate and I want to detect when a lines hits another. I’m trying to implement some basic linear algebra to obtain the equation of the lines and then solving for x,y, but the results are erratic. At this point I’m testing only with two lines which means I s…
javascript dropdown menu onclick
I’ve been working at this for a while now, but don’t understand what’s wrong with my code. I’m sure it’s something simple – it always is! Basically, I have a drop down menu, with some options. I want it to go to a web page when the third option, plumber, is selected. When a…