U ovom ćemo članku izraditi kalkulator pomoću HTML-a uz pomoć raznih primjera. Na početku ovog članka naučit ćemo temeljne aspekte HTML-a. Nakon toga ćemo znati izraditi osnovni kalkulator s HTML-om.
Što je HTML?
Hypertext Mark-up Language standardni je označni jezik za dokumente dizajnirane za prikaz u web pregledniku. Može se koristiti s različitim tehnologijama kao što je CSS i skriptnim jezicima kao što su JavaScript i PHP.
HTML se temelji na tekstu; HTML datoteka se može uređivati jednostavnim otvaranjem u programu Notepad++, Notepad i sublime, itd. Uređivač teksta može se koristiti za stvaranje ili uređivanje HTML datoteke. Imenovan je ekstenzijom datoteke .html.
Što je kalkulator?
A Kalkulator je elektronički uređaj koji može izvoditi različite matematičke izračune, poput zbrajanja, množenja, oduzimanja, dijeljenja itd. Tvrtka Casio razvila je prvi elektronički kalkulator 1957. Može se pokretati na različitim operativnim sustavima na računalima, pametnim telefonima i tabletima. Kalkulator možemo izraditi uz pomoć raznih razvojnih alata, jezika.
Uzmimo neke primjere Kalkulatora uz pomoć HTML-a.
Primjer 1:
Calculator using HTML Example html { height: 100vh; display: flex; align-items: center; justify-content: center; background-color: #2d3436; background-image: linear-gradient(315deg, #2d3436 0%, #000000 74%); font-family: 'Cookie', cursive; } .title { margin-bottom: 10px; padding: 5px 0; font-size: 40px; font-weight: bold; text-align: center; color: red; font-family: 'Cookie', cursive; } input[type=button] { width: 60px; height: 60px; float: left; padding: 0; margin: 5px; box-sizing: border-box; background: #ecedef; border: none; font-size: 30px; line-height: 30px; border-radius: 50%; font-weight: 700; color: #5E5858; cursor: pointer; } input[type=text] { width: 270px; height: 60px; float: left; padding: 0; box-sizing: border-box; border: none; background: none; color: red; text-align: right; font-weight: 700; font-size: 60px; line-height: 60px; margin: 0 25px; } .calculator { background-color: #c0c0c0; box-shadow: 0px 0px 0px 10px #666; border: 5px solid black; border-radius: 10px; } #display { height: 40px; text-align: right; background-color: black; border: 3px solid white; font-size: 18px; left: 2px; top: 2px; color: red; } .btnTop { color: white; background-color: #6f6f6f; font-size: 14px; margin: auto; width: 50px; height: 25px; } Example of Calculator using HTML <table class="table"> <tr> <td> <br> </td> </tr> <tr> <td> <br> <br> <br> <br> </td> </tr> </table> Obrazloženje: U gornjem primjeru izradili smo osnovni kalkulator uz pomoć HTML-a. uz pomoć ovog kalkulatora možemo raditi bitne računske funkcije kao što su zbrajanje, oduzimanje, množenje, dijeljenje itd.
Slijedi rezultat ovog primjera:
Primjer 2:
Calculator using HTML Example * { box-sizing: border-box; font-family: 'Roboto', sans-serif; } body { background: black; } .container { width: auto; margin: 20px; color:black; } .calc-body { width: 275px; margin: auto; min-height: 400px; border: solid 1px #3A4655; box-shadow: 0 8px 50px -7px black; } .calc-screen { background: #3A4655; width: 100%; height: 150px; padding: 20px; } .calc-operation { text-align: right; color: #727B86; font-size: 21px; padding-bottom: 10px; border-bottom: dotted 1px; } .calc-typed { margin-top: 20px; font-size: 45px; text-align: right; color: #fff; } .calc-button-row { width: 100%; background: #3C4857; } .button { width: 25%; background: #425062; color: #fff; padding: 20px; display: inline-block; font-size: 25px; text-align: center; vertical-align: middle; margin-right: -4px; border-right: solid 2px #3C4857; border-bottom: solid 2px #3C4857; transition: all 0.2s ease-in-out; } .button.l { color: #AEB3BA; background: #404D5E; } .button.c { color: #D95D4E; background: #404D5E; } .button:hover { background: #E0B612; transform: rotate(5deg); } .button.c:hover { background: #E0B612; color: #fff; } .button.l:hover { background: #E0B612; color: #fff; } .blink-me { color: #E0B612; } html { height: 100vh; display: flex; align-items: center; justify-content: center; background-color: #2d3436; background-image: linear-gradient(315deg, #2d3436 0%, #000000 74%); font-family: 'Cookie', cursive; } .title:hover { background: #E0B612; color: #fff; } .title { margin-bottom: 10px; padding: 5px 0; font-size: 40px; font-weight: bold; text-align: center; color: #AEB3BA; font-family: 'Cookie', cursive; } input[type=button] { width: 60px; height: 60px; float: left; padding: 0; margin: 5px; box-sizing: border-box; background: #ecedef; border: none; font-size: 30px; line-height: 30px; border-radius: 50%; font-weight: 700; color: #5E5858; cursor: pointer; } input[type=text] { width: 270px; height: 60px; float: left; padding: 0; box-sizing: border-box; border: none; background: none; color: red; text-align: right; font-weight: 700; font-size: 60px; line-height: 60px; margin: 0 25px; } .calculator { background-color: #c0c0c0; box-shadow: 0px 0px 0px 10px #666; border: 5px solid black; border-radius: 10px; } 25 + 10 = 35 <span> _ </span> C ? % / 7 8 9 x 4 5 6 ? 1 2 3 + . 0 <= < pre> <p> <strong>Explanation:</strong> In the above example, we have created a basic calculator with the help of HTML. With the help of this calculator, we can do an essential calculation function such as addition, subtraction, multiplication, division, etc.</p> <p> <strong>Following is the output of this example:</strong> </p> <img src="//techcodeview.com/img/html-tutorial/37/html-calculator-3.webp" alt="HTML Calculator"> <h3>Example 3:</h3> <pre> Calculator using HTML Example body { background-color: tan; } .box { background-color: #3d4543; height: 300px; width: 270px; border-radius: 10px; position: relative; top: 80px; left: 40%; } .display { background-color: #222; width: 220px; position: relative; left: 15px; top: 20px; height: 40px; } .display input { position: relative; left: 2px; top: 2px; height: 35px; color: black; background-color: #bccd95; font-size: 21px; text-align: right; } .keys { position: relative; top: 15px; } .button { width: 40px; height: 30px; border: none; border-radius: 8px; margin-left: 17px; cursor: pointer; border-top: 2px solid transparent; } .button.gray { color: black; font-color: black; background-color: #6f6f6f; border-bottom: black 2px solid; border-top: 2px #6f6f6f solid; } .title:hover { color: #fff; } .title { margin-bottom: 10px; margin-top: 30px; padding: 5px 0; font-size: 40px; font-weight: bold; text-align: center; color: black; font-family: 'Cookie', cursive; } .button.pink { color: black; background-color: #ff4561; border-bottom: black 2px solid; } .button.black { color: black; background-color: 303030; border-bottom: black 2px solid; border-top: 2px 303030 solid; font-weight: bold; } .button.orange { color: black; background-color: FF9933; border-bottom: black 2px solid; border-top: 2px FF9933 solid; } .gray:active { border-top: black 2px solid; border-bottom: 2px #6f6f6f solid; } .pink:active { border-top:black 2px solid; border-bottom:#ff4561 2px solid; } .black:active { border-top: black 2px solid; border-bottom: #303030 2px solid; } .orange:active { border-top: black 2px solid; border-bottom: FF9933 2px solid; } p { line-height: 10px; } Example of Calculator using HTML function c(val) { document.getElementById('d').value=val; } function v(val) {document.getElementById('d').value+=val; } function e() { try { c(eval(document.getElementById('d').value)) } catch(e) { c('Error') } } </pre> <p> <strong>Explanation:</strong> In the above example, we have created a basic calculator with the help of HTML. With the help of this calculator, we can do an essential calculation function such as addition, subtraction, multiplication, division, etc.</p> <p> <strong>Following is the output of this example:</strong> </p> <img src="//techcodeview.com/img/html-tutorial/37/html-calculator-4.webp" alt="HTML Calculator"> <hr></=> Obrazloženje: U gornjem primjeru izradili smo osnovni kalkulator uz pomoć HTML-a. Uz pomoć ovog kalkulatora možemo raditi bitne računske funkcije kao što su zbrajanje, oduzimanje, množenje, dijeljenje itd.
Slijedi rezultat ovog primjera:
