I have a local storage that looks like this: I need to somehow sort it to look like this I’ve tried storing it in a matrix such as this: Where x is the first set of numbers, y is the next and then values is Bob, Dad etc…from there I could just do a foreach for both sections of the
Tag: javascript
“emcc” command does not recognized
I’m having issue with building this demo. https://github.com/kakukogou/opencvjs_demo_segmentation When i cd into this folder and run make command i get this error message: This is how make file looks like. Is there any issue with my environment variables. What is the proper way to compile this ? Answer …
How to call python script from NodeJs
I need to call this python script in NodeJs. Read.py I used python-shell, here is the NodeJs code for that Test.js But when I ran this code I didn’t see anything in Node side. I think problem occurs when python script comes to this level. Because I just ran with while loop which has only print statement…
Is it possible to add duration and easing to window.scrollTo?
I’m using Bill Miller’s Interactive Decision guide code. http://www.guiideas.com/2013/09/interactive-decision-guide.html To scroll new questions into view at the bottom of the page he uses window.scrollTo Is it possible to add duration and easing to window.scrollTo or is there an alternative metho…
Redirect ranges of IPs in JavaScript (no .htaccess)
I’m trying to redirect anyone viewing my blog from certain IP addresses (or ranges of IP addresses) to a different page. I found something that works for individual IP addresses, but I can’t figure out how to block ranges of IP addresses – like 123.123.123.* Here’s the script: I’…
Snake Game with Mobile Button Controls
In this Snake game, I need the buttons to control the snake just like the arrow keys do. This will allow the game to be played on a mobile device. You can see i have code in there for the buttons, but they are not working properly and not controlling the movement of the snake. Any advice to make the
Easiest way to get list of files in the server directory
I need to get array of all images (or simply of all files) in directory (e.g. www.example.com/images/). I prefer to use JavaScript but it’s hard to make. So should I use PHP, meybe? Could you please help me – I’m not good at this. Thank you very much! Answer Javascript cannot fetch all files…
Reverse array in Javascript without mutating original array
Array.prototype.reverse reverses the contents of an array in place (with mutation)… Is there a similarly simple strategy for reversing an array without altering the contents of the original array (without mutation)? Answer You can use slice() to make a copy then reverse() it
Javascript regex matching at least one letter or number?
What would be the JavaScript regex to match a string with at least one letter or number? This should require at least one alphanumeric character (at least one letter OR at least one number). Answer In general, a pattern matching any string that contains an alphanumeric char is However, a regex requirement lik…
How to query a field in MongoDB with a boolean value and return a boolean whether it’s true or false
Check my simple collection: What I want to do once a document is found, is to manipulate a DOM and show a <div class=”driving-tutorial> if the field canDrive value is false and hide it if the value is true Like this in meteor: Answer You could implement this logic with the findOne() method which f…