Error: Couldn’t find preset “es2015” relative to directory “/Users/username”
You only need to install babel-preset-es2015: CLI usage example:
javascript
How to fix “TypeError: Right-hand side of ‘instanceof’ is not callable” when I use another module class?
The problem is that you have a circular dependency. The other file requires index, index requires Transaction, and Transaction requires index. So, when transaction runs, it tries to require index, whose module is already in the process of being built. index hasn’t exported anything yet, so requiring it at that time results in an empty object. Because both must call each other, one way to solve it would be … Read more
Rock, Paper, Scissors, Lizard, Spock in JavaScript
Simplify result function with math. http://jsfiddle.net/afrievalt/qBbJn/ . this function will also work with options = [“cockroach”, “nuke”, “shoe”], (from that 70s show) or any odd length array like options = [“water”, “fire”, “paper”, “rock”, “tree”, “metal”, “mud”] //todo: throw error if any index = -1
How to use aria-expanded=”true” to change a css property
Why javascript when you can use just css?
how to use addHTML function in jsPDF
First, you have to include jsPDF library, and also html2canvas or rasterizeHTML. Then, just create a jsPDF object and save to pdf the entire ‘body’ tag (or whatever): You can find more examples on the jsPDF website: http://mrrio.github.io/jsPDF/
How to make HTML element resizable using pure Javascript?
I really recommend using some sort of library, but you asked for it, you get it: Demo Remember that this may not run in all browsers (tested only in Firefox, definitely not working in IE <9).
ngular is automatically adding ‘ng-invalid’ class on ‘required’ fields
Since the inputs are empty and therefore invalid when instantiated, Angular correctly adds the ng-invalid class. A CSS rule you might try: Which basically states when the field has had something entered into it at some point since the page loaded and wasn’t reset to pristine by $scope.formName.setPristine(true) and something wasn’t yet entered and it’s invalid then the text … Read more
How to read and write into file using JavaScript?
For completeness, the OP does not state he is looking to do this in a browser (if he is, as has been stated, it is generally not possible) However javascript per se does allow this; it can be done with server side javascript. See this documentation on the Javascript File class Edit: That link was to … Read more
Why onbeforeunload event is not firing
The onbeforeunload event is not cancel-able, because of security reasons, but if an event handler function for the onbeforeunload event returns a string value, this text will be shown in a confirmation dialog box, where the user can confirm whether he wants to stay or leave the current page. Note that event listeners cannot be registered for the onbeforeunload event with the addEventListener and attachEvent methods (only … Read more