I run this code: In chrome it outputs [window] true in IE11 it outputs [window] false Why? Answer IE messes up the hasOwnProperty method completely as it’s painful with host Objects (host objects don’t have the hasOwnProperty method). What we can do however is access the Object.prototype directly to guarantee…
Tag: javascript
Defining an array as an environment variable in node.js
I have an array that I pull data from. Since I’m using heroku, it may be better to replace it with an environment variable, but I’m not sure how to do that. Is using a JSON string as an environment variable the way to go? Answer In this scenario, it doesn’t sound like an env var is the way t…
Mongoose – What does the exec function do?
I came across a piece of Mongoose code that included a query findOne and then an exec() function. Ive never seen that method in Javascript before? What does it do exactly? Answer Basically when using mongoose, documents can be retrieved using helpers. Every model method that accepts query conditions can be ex…
Programmatically get FontAwesome unicode value by name
Following the steps outlined in this answer, I am setting my cursor to a FontAwesome icon. Now, I would like to set the cursor to any icon, by class name (for example, fa-pencil). To accomplish this, it seems like I would need to be able to programmatically lookup the unicode value of a given icon. I know tha…
How to select only one DIV from multiple divs using javascript
I have below code in my HTML which has multiple DIV’s, I would like to use these DIV’s as options. For this reason, the DIV which is being clicked should be selectable (leaving others non selected – only one should be active) and when I click on Confirm link, the value within the selected DI…
Convert PHP string to javascript string [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 7 years ago. Improve this question For example, I have this php string: “2015-06-26”. I want to assign it to a java…
Dynamically update subtitle on Highcharts chart?
Is it possible to dynamically update the subtitle of a Highcharts chart? In the docs, I can only see options relating to initial configuration options, not methods to update the chart. In the update I’m doing, I’m also updating the data, and I’d like the highcharts update to be part of a smo…
SweetAlert prompt with two input fields
Currently working on a personal project. I want the user to click a button and a SweetAlert prompt would be presented for the user to verify their credential. However, the code I see on the SweetAlert website only allows one input field. Here is the code I have: So, is there a way I can get two input fields? …
Recreate an object from an array of objects in Javascript
I could use some help with the following: I’m trying to create a filterable wordpress nav menu using React Tree Menu. The Tree Menu component requires the following data structure: I have set up parent and child pages of the above in wordpress and have also created a hierarchical wordpress menu. I am us…
Disable FancyTree Nodes
Is there anyway to disable fancytree node? Am using Select: 2 option along with Ajax call to populate the tree. I get the data from DB and need to show my preselected node selected and disabled as below. One option is to set below properties as: hideCheckbox: true selected: true But this makes the checkbox hi…