JavaScript has come a long way since its humble beginnings as a clunky, exclusively front-end scripting language. We saw some big developments in the JavaScript landscape during 2019, including the widespread adoption of React hooks and functional programming concepts, steady… » hackernoon.com | hackernoon.com
JavaScript is one of the most popular programming languages in the world. I believe it’s a great choice for your first programming language ever. We mainly use JavaScript to create websites web applications server-side applications using Node.js … » freeCodeCamp.org | freecodecamp.org
We all know that JavaScript quizzes can be… awful and confusing 😐 The pointless foo bar baz questio… » DEV Community | dev.to
By Carol-Theodor Pelu If you’ve ever used Node.js, then you must have used npm for sure. npm (node package manager) is the dependency/package manager you get out of the box when you install Node.js. It provides a way for developers to install package… » freeCodeCamp.org | freecodecamp.org
Nice Doodle by Abhishek Kumar explaining the difference between JavaScript’s var, let, and const: Good to see hoisting is also explicitly mentioned by name. 💁♂️ I personally always start with const. Only if I need to reassign a variable’s value (for example: a counter in a… » Posted by | bram.us
This entry describes simple techniques to fulfill the JavaScript compiler optimization process which results in faster running code. Especially in games you immediately notice frame drops and when the garbage collector has to hit in with a big stack of work to do. » Felix Maier | medium.com
Si queremos que nuestros enlaces se abran en una ventana nueva podemos utilizar el atributo target para las etiquetas <a>. Sin embargo, si utilizamos un esquema XHTML Strict este atributo no es válido para ninguna etiqueta. El motivo es separar la presentación del contenido del comportamiento, y el atributo target modifica el comportamiento. Una alternativa es utilizar Javascript para conseguir el mismo efecto. Si Javascript no está disponible simplemente se abrirá en la misma ventana. Con Javascript, además, podemos conseguir que la ventana se abra en segundo plano, aunque sólo en algunos navegadores, como por ejemplo Chromium. En Firefox es necesario modificar un parámetro que viene desactivado por defecto. ...
Si nos encontramos un formulario web lleno de asteriscos, podemos obtener lo que hay realmente escrito pegando lo siguiente en la barra de direcciones: javascript:(function(){var s,F,j,f,i; s = ""; F = document.forms; for(j=0; j < f.length; ++j) { f = F[j]; for (i=0; i < f.length; ++i) { if (f[i].type.toLowerCase() == "password") s += f[i].value + " "; } } if (s) alert("Passwords in forms on this page: " + s); else alert("There are no passwords in forms on this page.");})();