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DOM functions&Solutions created by leodotng - https://repl.it/K6xd/0
// Define a function named getTextById
// The function should accept 1 parameter: id
// The function should select the element with the given id
// The function should return the element's textContent
function getTextById (id) {
let el = document.getElementById(id);
return el.innerText;
}
// Define a function named setTextById
// The function should accept 2 parameters: id and text
// The function should select the element with the given id
// The function should set the element's textContent to be the given text
function setTextById (id, text) {
let el = document.getElementById(id);
el.innerText = text;
}
// Define a function named getTextByClassName
// The function should accept 1 parameter: className
// The function should select the element with the given className
// Assume there is only 1 element with the given className on the page
// The function should return the element's textContent
function getTextByClassName (className) {
var el = document.getElementsByClassName(className);
return el[0].textContent;
}
// Define a function named setTextByClassName
// The function should accept 2 parameters: className and text
// The function should select the element with the given className
// Assume there is only 1 element with the given className on the page
// The function should set the element's textContent to be the given text
function setTextByClassName (className, text) {
var el = document.getElementsByClassName(className)
el[0].textContent = text;
}
// Define a function named addClassById
// The function should accept 2 parameters: id and className
// The function should select the element with the given id
// Assume there is only 1 element with the given className on the page
// The function should add the given class to the elements classList
function addClassById (id, className) {
var el = document.getElementById(id)
el.className = className
}
// Define a function named getValueByName
// The function should accept 1 parameter: name
// The function should select the element with the given name
// Assume there is only 1 element with the given name on the page
// The function should return the element's value
function getValueByName (name) {
var el = document.getElementsByName(name)
return el[0].value
}
// Define a function named setValueByName
// The function should accept 2 parameters: name and value
// The function should select the element with the given name
// Assume there is only 1 element with the given name on the page
// The function should set the element's value to be the given value
function setValueByName (name, value) {
var el = document.getElementsByName(name)
el[0].value = value
}
// Define a function named hideByClassName
// The function should accept 1 parameter: className
// The function should set the display property to 'none' on all elements with the given className
function hideByClassName (className) {
var el = document.getElementsByClassName(className)
for (var i = 0; i < el.length; i++) {
el[i].style.display = 'none';
}
}
// Define a function named setStyleByClassName
// The function should accept 3 parameters: className, styleProperty and value
// The function should set the given style property to the given value on all elements with the given className
function setStyleByClassName (className, styleProperty, value) {
var el = document.getElementsByClassName(className)
for (var i = 0; i < el.length; i++) {
el[i].style[styleProperty] = value;
}
}
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