String methods can be combined in a process called method chaining. Given word = 'JavaScript';, word.toUpperCase() returns JAVASCRIPT. What would word.slice(4).toUpperCase() return?
Here is what the above code is Doing:
1. word.slice(4) returns the string ‘Script’.
2. ‘Script’.toUpperCase() returns the string ‘SCRIPT’.
3. word.slice(4).toUpperCase() returns the string ‘SCRIPT’.
// In my case, I used a button to activate this function: function myFunction() { window.location.href = ‘index.html’; } Here is what the above code is Doing: 1. The first line of code is a function that is called when the button is clicked. 2. The second line of code is the actual code that…
let emp = [] emp[0] = ‘Casey Jones’ emp[1] = ‘Phil Lesh’ emp[2] = ‘August West’ Here is what the above code is Doing: 1. Create an empty list called emp 2. Add the string ‘Casey Jones’ to the 0th position in the list 3. Add the string ‘Phil Lesh’ to the 1st position in…
var colors=[“red”,”green”,”blue”,”yellow”]; //loop back-words through array when removing items like so: for (var i = colors.length – 1; i >= 0; i–) { if (colors[i] === “green” || colors[i] === “blue”) { colors.splice(i, 1); } } //colors is now  [“red”, “yellow”] Here is what the above code is Doing: 1. We create an array of…
$(window).scroll(function() { var scroll = $(window).scrollTop(); if (scroll >= 500) { $(“.clearHeader”).addClass(“darkHeader”); } }); Here is what the above code is Doing: 1. When the page loads, the script checks to see if the window is scrolled more than 500 pixels. 2. If it is, it adds the class “darkHeader” to the element with the…
//remove a css class from an element document.getElementById(“itemID”).classList.remove(“class_name”); Here is what the above code is Doing: 1. We’re selecting the element with the id of “itemID” 2. We’re using the classList property to access the classList of the element 3. We’re using the remove() method to remove the class “class_name” from the element
/[\n\r]/g Here is what the above code is Doing: 1. We’re using the global variable ‘regex’ to store a regular expression. 2. The regular expression is looking for any newline characters (\n) or carriage returns (\r). 3. The ‘g’ at the end of the regular expression means that we want to search for all matches,…