Is it necessary to decode the JSON data stored in the variable?

Question

Is it necessary to decode the JSON data stored in the variable?

Consider the code snippet below:

var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
            var responses = JSON.parse(this.responseText);
            var email = document.getElementById("email").value;
            var passwordIs = responses.email; // email should be replaced with the user's input value;
            document.write(passwordIs);
         }
    };
xmlhttp.open("GET","https://example.com", true);
xmlhttp.send();

Is there a way to modify the code so that when a user enters an email address, it is automatically substituted in place of the original email stored in the variable passwordIs?

In simpler terms, if a user inputs

<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d5bfb1bab095b0adb4b8a5b9b0fbb6bab8">[email protected]</a>

, the variable passwordIs should reflect this:

<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="51233422213e3f2234227f3b3e34113429203c213d347f323e3c">[email protected]</a>

However, currently it displays as responses.email.

javascript json

Answer 1

Answer №1

Instead of using a dot, try using brackets:

var passwordIs = responses[email];

In Javascript, when you use dot notation, the text after the dot is interpreted as a literal, so you cannot use a variable; for more information check out: Dynamically access object property using variable

Answer 2

Instead of using a dot, try using brackets:

var passwordIs = responses[email];

In Javascript, when you use dot notation, the text after the dot is interpreted as a literal, so you cannot use a variable; for more information check out: Dynamically access object property using variable

Is it necessary to decode the JSON data stored in the variable?

Answer №1

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