Begin: The Math object in JavaScript can prove to be extremely useful. In a page using the Math object repeatedly, I would rather not continuously use. I would prefer to use these functions at top-level. I will provide an example on how this is possible: The With Keyword (Bad Way): Let me state the following:…
Tag: javascript
Check if mouse is over element A OR element B
Is it possible to check if the mouse is over one of two elements? I have this code which will hide my menu: I would like to execute the animation only if the mouse is no longer over .chapterMenuContainer OR another class called .chapterMenuHeading. These two classes need to be siblings for structural reasons.…
how to show a floating action button always in bottom of screen
I’m using material ui I have a floating action button and I want to show it a specific place that would not change with scroll, and also I want to know if it is a fine problem here is the code here is floating action button Answer The html and css does it well like this. All you need to
JavaScript .map() to update array with value from another array – returns value but key is undefined
I have two arrays. I want to update array1 by getting array2 multiple value by matching on each array’s color value. I am using this to do the following code to do the work. Note for purposes of this question both array contents are fake data not my actual array data. The code does return expected resul…
Selecting previous element in DOM
I’m having a hard time with some JS DOM traversal. I’m stuck with html that’s something like this: This is all hidden by default. I’m trying to use a text field so that if it matches an h4 person-name, it displays the some-content container, as well as the preceding h2. I can make it w…
object` (“[object Response]”) cannot be serialized as JSON?
I am trying to consume my api through code I am getting this error object` (“[object Response]”) cannot be serialized as JSON But when I call or use this api through browser I am getting response. here is my code https://codesandbox.io/s/naughty-platform-1xket?file=/pages/index.js I am consuming m…
HTML onclick event doesn’t work with parameter
When I click my button, which should make things visible and invisible, the whole website disappears. What I was trying to do is to make a div with some text and probably some images and let it disappear and appear, when the button gets hit. So it would look like the Information box lists more information’s, …
How can I filter a generated list from a query from PHP in JS?
I have a list of files from my database. I’m looking for a way to query them. but I’m receiving an error, which is… it only display the first item if my input matches the first. This is the form below is the php and I have the js here Answer You are generating mutliple myUl divs inside while…
React how to make conditionally rendered navigation persist
I am in the process of learning React and am creating a React desktop app where the side-navigation must change depending on the user’s current location (determined by standard navgation buttons in the App body). The application is accessible here: https://codesandbox.io/s/conditional-navigation-di8t5?f…
Javasript check current datetime with loop 2 between datetimes
I’m working with time loop. Now I have this FlipClock plugin, My question, is it possible to check if there is a currentTime between startShow and endShow match with my above code? Answer Instead of two arrays for startShow and endShow, take one array as showTime and add object with startShow and endSho…