Regular expression pattern for the test example "test test123". The first string should consist of only alphabets (A-Za-z), while the second string should be a combination of alphabets and numbers (A-Za-z0-9).
Examples: 1. hello world123 (true) 2. 123 hello123 (false)
You can utilize the regex ^[a-zA-Z]+[ ][a-zA-Z0-9]+$
function ValidateInput() {
var string = document.getElementById("txtInput").value;
var pattern = new RegExp("^[a-zA-Z]+[ ][a-zA-Z0-9]+$");
var result = pattern.test(string);
document.getElementById("output").innerHTML = result;
}<input type="text" id="txtInput" />
<button onclick="ValidateInput()">Check</button>
<p id="output"></p>I implemented the following code and it is functioning perfectly:
var pattern = new RegExp("^[a-zA-Z]+[ a-zA-Z0-9]+$"); var result = pattern.test(str);
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