I have an html page that has one image object. I am trying to write some JavaScript but something isn’t working in the script. I have a piece of script that reads a variable and if the variable ‘e’ is equal to 1, then one image appears. If ‘e’ is anything other number then image …
Author: admin@master
Can’t get width property with JavaScript
My idea is when I click on the button, the div#x will lose 1% of width. Here is my code: The blue bar (div#x) is supposed to be shorter 1% every time I click on the left button (section#a). I have check so many times but I still don’t know what problem with my code. I did change some code
Add hours in 12 hour format using javascript / jquery
How we can add hours into 12hour format time using Javascript/JQuery? Example: Add 2 hour in 12:00 AM then result should be 02:00 AM Add 8 hour in 09:00 PM then result should be 05:00 AM Answer The following function takes a string representing a time and an integer denoting the number of hours you want to ad…
Remove constraints in sequelize migration
I’m adding a unique constraint in a migration via the migrations.changeColumn function. Adding the constraint works, but since you need to provide a “backwards migration“, removing it the same way does not. It doesn’t give any errors when migrating backwards, but again applying the forward migrati…
Running a shell command from gulp
I would like to run a shell command from gulp, using gulp-shell. I see the following idiom being used the gulpfile. Is this the idiomatic way to run a command from a gulp task? Answer gulp-shell has been blacklisted. You should use gulp-exec instead, which has also a better documentation. For your case it act…
Best way to scrolldown onpageload
I have the following code: The previous code attempts to scroll down after page loading. Is there any problem, as it doesn’t work for me? Answer instead of window.onload use because window.onload is fired when entire page load and document.ready is fired when DOM loads and use srcollTo instead of scroll
How is something “selected” which then triggers an event?
What I mean by this is for example, you have two containers, one on the left, one on the right. Content is in the left and when you “select” it, items are displayed on the right. I could use a solution such as hiding via javascript / display: none/inline-block; I thought of a radio button but I…
How to parse and capture any measurement unit
In my application, users can customize measurement units, so if they want to work in decimeters instead of inches or in full-turns instead of degrees, they can. However, I need a way to parse a string containing multiple values and units, such as 1′ 2″ 3/8. I’ve seen a few regular expression…
How do I set a marker in MapView of React Native
I want to set a marker on MapView in React Native, but I can’t find any information through official documents of MapView. If it is not allowed in that way, how can I use existed react module such as react-googlemaps in React Native? Answer You can set markers using the annotations prop. For example:
Cannot click input element within button element
Take a look at the below markup & fiddle: http://jsfiddle.net/minlare/oh1mg7j6/ In Chrome, each element within the button can be selected through the developer console and js click events are delegated. In Firefox/IE you cannot select the child elements or pickup js click events. Is there a way around thi…