Question

I have a string like url params. I want to get insurance value if insurance param comes only one time in string.

For example:

1. Following string should produce result: false

?LastName=abc&FirstName=xyz&insurance=2&insurance=3&insurance=4&insurance=5&BirthDate=01-01-2000

2. Following string should produce result: 2 (because only one insurance)

?LastName=abc&FirstName=xyz&insurance=2&BirthDate=01-01-2000

How can I do this in JavaScript / jQuery

I appreciate every answer. Thanks

Answer 1

Here’s a function that will do what you want

function checkInsurance( queryString ) {
    // a regular exression to find your result
    var rxp = /insurance=(\d+)/gi
    if( !queryString.match( rxp ) || queryString.match( rxp ).length !== 1 ) {
        // if there are no matches or more than one match return false
        return false;
    }
    // return the required number
    return rxp.exec( queryString )[1];
}