Created
July 19, 2019 20:27
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JS Bin // source https://jsbin.com/cowurewina
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div class="counter"></div> | |
| <input type="text" class="name" pattern="^[A-Za-z]*" > | |
| <input type="button" value="greet" class="btn " > | |
| <script id="jsbin-javascript"> | |
| var nameElem = document.querySelector('.name'); | |
| var btn = document.querySelector('.btn'); | |
| var counterElem = document.querySelector('.counter '); | |
| var counter = 0; | |
| var names = {}; | |
| function greet(name) { | |
| // check if the name has already been greeted... | |
| var theName = name.toLowerCase(); | |
| if (names[theName] === undefined) { | |
| names[theName] = ""; | |
| counter++; | |
| counterElem.innerHTML = counter; | |
| } | |
| return "Hello, " + name; | |
| } | |
| btn.addEventListener('click', function() { | |
| var gotNumber = /\d.*\d.*/.test(nameElem.value); | |
| if (gotNumber){ | |
| alert("number entered!") | |
| } | |
| greet(nameElem.value) | |
| // alert(nameElem.value) | |
| }) | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript"> | |
| var nameElem = document.querySelector('.name'); | |
| var btn = document.querySelector('.btn'); | |
| var counterElem = document.querySelector('.counter '); | |
| var counter = 0; | |
| var names = {}; | |
| function greet(name) { | |
| // check if the name has already been greeted... | |
| var theName = name.toLowerCase(); | |
| if (names[theName] === undefined) { | |
| names[theName] = ""; | |
| counter++; | |
| counterElem.innerHTML = counter; | |
| } | |
| return "Hello, " + name; | |
| } | |
| btn.addEventListener('click', function() { | |
| var gotNumber = /\d.*\d.*/.test(nameElem.value); | |
| if (gotNumber){ | |
| alert("number entered!") | |
| } | |
| greet(nameElem.value) | |
| // alert(nameElem.value) | |
| })</script></body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| var nameElem = document.querySelector('.name'); | |
| var btn = document.querySelector('.btn'); | |
| var counterElem = document.querySelector('.counter '); | |
| var counter = 0; | |
| var names = {}; | |
| function greet(name) { | |
| // check if the name has already been greeted... | |
| var theName = name.toLowerCase(); | |
| if (names[theName] === undefined) { | |
| names[theName] = ""; | |
| counter++; | |
| counterElem.innerHTML = counter; | |
| } | |
| return "Hello, " + name; | |
| } | |
| btn.addEventListener('click', function() { | |
| var gotNumber = /\d.*\d.*/.test(nameElem.value); | |
| if (gotNumber){ | |
| alert("number entered!") | |
| } | |
| greet(nameElem.value) | |
| // alert(nameElem.value) | |
| }) |
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