My CSV data looks like this: How do you read this data and convert to an array like this using JavaScript?: I’ve tried this code but no luck!: Answer NOTE: I concocted this solution before I was reminded about all the “special cases” that can occur in a valid CSV file, like escaped quotes. I…
Tag: javascript
in javascript, how do you sort a subset of an array?
I have an array and would like to sort all but the last n elements. For example, if the array is 10 elements long, would like elements 0 through 7 to be sorted while elements 8-9 are left in place. Answer
Highcharts DateTime Localization
Can someone point me to how I can localize the date-related Strings which are hardcoded in the HighCharts js-file. For instance, instead of the default ‘Feb’ date label in the x-axis, I would want the chart to display the localized value ‘Fév’. I tried implementing the localization by …
How to uppercase Javascript object keys?
Anyone know a good way to turn this?: into: Answer Loop through delete and replace:
How to set onmousedown event for dynamically created div in IE?
I have a (Javascript) tool which dynamically creates a div whenever the user clicks on the screen. Now, after I’ve created _newDiv, I want to assign a onmousedown event to it. This works perfectly in Firefox, but doesn’t work in IE 8. Is there any hack I can use to solve this problem? Answer Probl…
Find object by id in an array of JavaScript objects
I’ve got an array: I’m unable to change the structure of the array. I’m being passed an id of 45, and I want to get ‘bar’ for that object in the array. How do I do this in JavaScript or using jQuery? Answer Use the find() method: From MDN: The find() method returns the first valu…
Webkit Javascript Console – How to use it?
I’m working on a project and there is a ton of js, etc in it. I didn’t write it I’m “taking it over”. There is a piece of Javascript somewhere that is adding top: -50px margin to an element with the id of “footer”. When I look into the page source (through the develop…
Checking if jquery is loaded using Javascript
I am attempting to check if my Jquery Library is loaded onto my HTML page. I am checking to see if it works, but something is not right. Here is what I have: Answer something is not right Well, you are using jQuery to check for the presence of jQuery. If jQuery isn’t loaded then $() won’t even run…
Google Maps v3: How to tell when an ImageMapType overlay’s tiles are finished loading?
I’m working with the Google Maps v3 API, and I have a custom overlay layer based on the ImageMapType class. I would like to show a loading indicator of some sort while the overlay’s tiles are loading, but I don’t see any way to know when they are finished. The code to create the overlay look…
What is the difference between .map, .every, and .forEach?
I’ve always wondered what the difference between them were. They all seem to do the same thing… Answer The difference is in the return values. .map() returns a new Array of objects created by taking some action on the original item. .every() returns a boolean – true if every element in this …