Useful codes to use on the internet

website-useful-codes.md

useful codes to use on the internet

You can use these on the inspector's console, or save them as bookmarks by turning them into a oneliner and writing javascript: before the code.

optimization

• Clear out website content in order to save RAM:

document.body.innerHTML = "";
document.head.innerHTML = "";

• Dark mode (not efficient at the moment, sometimes breaks websites):

function dark_mode(x) {
    elements = document.getElementsByTagName(x);
    for (var i = 0; i < elements.length; i++) {
        elements[i].style.backgroundColor = "black";
        elements[i].style.color = "red";
    }
}
dark_mode("div");

forms

• When filling out long forms, and they don't save automatically:

const form = document.getElementById("sampleForm"); // write form id here
let reqBody = {};
Object.keys(form.elements).forEach(key => {
    let element = form.elements[key];
    if (element.type !== "submit") {
        reqBody[element.name] = element.value;
    }
});
console.log(reqBody); //output will be in console

source: https://stackoverflow.com/questions/23139876/getting-all-form-values-by-javascript