How to access javascript variable value by creating another variable via concatenation?

Question

Please have a look on the following code -

var abc_text = \"Hello\";
var def_text = \"world\";

function testMe(elem) {
    var xyz = elem+\"_text\";
    alert(x         


        

Answer 1

var test={"abc":"Hello", "def":"World"};

function testMe(elem) { 
    var xyz = test[elem];
    alert(xyz); 
} 

testMe("abc"); 
testMe("def");

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