Jinsi ya Kutengeneza Simple Calculator kwa JavaScript

Basic calculator using prompt or input fields.
Example Code:
<input type="number" id="num1" placeholder="Number 1">
<input type="number" id="num2" placeholder="Number 2">
<select id="operator">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<button id="calc">Calculate</button>
<p id="result"></p>

<script>
document.getElementById("calc").addEventListener("click", function(){
let a = parseFloat(document.getElementById("num1").value);
let b = parseFloat(document.getElementById("num2").value);
let op = document.getElementById("operator").value;
let res;
if(op=="+") res=a+b;
else if(op=="-") res=a-b;
else if(op=="*") res=a*b;
else if(op=="/") res=a/b;
document.getElementById("result").innerText = "Result: "+res;
});
</script>
YouTube Description:
Jifunze kuunda simple calculator kwa JavaScript step by step.
Hashtags:
#JSCalculator #WebDev #Faulink