How to wait for a keypress in R?

As someone already wrote in a comment, you don’t have to use the cat before readline(). Simply write: readline(prompt=”Press [enter] to continue”) If you don’t want to assign it to a variable and don’t want a return printed in the console, wrap the readline() in an invisible(): invisible(readline(prompt=”Press [enter] to continue”))

Capture key press (or keydown) event on DIV element

(1) Set the tabindex attribute: <div id=”mydiv” tabindex=”0″ /> (2) Bind to keydown: $(‘#mydiv’).on(‘keydown’, function(event) { //console.log(event.keyCode); switch(event.keyCode){ //….your actions for the keys ….. } }); To set the focus on start: $(function() { $(‘#mydiv’).focus(); }); To remove – if you don’t like it – the div focus border, set outline: none in the CSS. … Read more

JQuery: detect change in input field [duplicate]

You can bind the ‘input’ event to the textbox. This would fire every time the input changes, so when you paste something (even with right click), delete and type anything. $(‘#myTextbox’).on(‘input’, function() { // do something }); If you use the change handler, this will only fire after the user deselects the input box, which … Read more

Submit form on pressing Enter with AngularJS

Angular supports this out of the box. Have you tried ngSubmit on your form element? <form ng-submit=”myFunc()” ng-controller=”mycontroller”> <input type=”text” ng-model=”name” /> <br /> <input type=”text” ng-model=”email” /> </form> EDIT: Per the comment regarding the submit button, see Submitting a form by pressing enter without a submit button which gives the solution of: <input type=”submit” … Read more