document.addEventListener("DOMContentLoaded", function(event) {
//do work
});
Here is what the above code is Doing:
1. We’re using the document object to access the DOM.
2. We’re using the addEventListener() method to listen for a “DOMContentLoaded” event.
3. When the event is detected, a callback function is executed to do some work.
//remove html tags from a string, leaving only the inner text function removeHTML(str){ var tmp = document.createElement(“DIV”); tmp.innerHTML = str; return tmp.textContent || tmp.innerText || “”; } var html = “Yo Yo Ma!”; var onlyText = removeHTML(html); “Yo Yo Ma!” Here is what the above code is Doing: 1. Create a temporary element 2. Set…
//body-parser helps parse json files //you can use body-parser anytime you need to use a form to post //data to a request var bodyParser = require(“body-parser”); app.use(bodyParser.urlencoded({extended: true})); Here is what the above code is Doing: 1. We’re requiring the express module and storing it in a variable called express. 2. We’re creating an express…
import React from ‘react’ import StickyParalaxHeader from ‘react-native-sticky-parallax-header’ const TestScreen = () => ( {/* */} {/* */} ) export default TestScreen Here is what the above code is Doing: 1. Importing the component 2. Creating a component that renders the component 3. Passing in the type of header you want to use ## Props…
Here is what the above code is Doing: 1. We’re creating a Stack.Navigator component. 2. We’re passing screenOptions as a prop to the Stack.Navigator component. 3. We’re passing headerShown as a prop to the screenOptions prop. 4. We’re setting the value of headerShown to false. This will hide the header from all the screens in…
let myString = “string,with,trailing,comma,”; // remove the last character of the string (regardless of what it is) myString.substr(0, myString.length-1) // remove only a comma if it appears at the end of the string myString.replace(/,$/, “”); Here is what the above code is Doing: 1. substr() is a method that returns a substring of a string….
arr.sort((a, b) =>{ return sortingArray.indexOf(a) – sortingArray.indexOf(b); }); Here is what the above code is Doing: 1. We are creating a new array called sortingArray. 2. We are pushing the values of the array that we want to sort into the sortingArray. 3. We are sorting the original array by comparing the index of the…