String literal and its concatenation syntax in angular

How to define String literal and its concatenation in angular? 

You can define a string literals  or get response data from back end API's then use the below concatenation syntax.

The first thing, you need to remember, use back quote( `) , doller ( $) , open braces( { ) and close braces ( } ) symbols.

Example: 

let str1='xyz';

let str2 = 'abc';

 let outputStr = `${str1}add${str2}`;  // xyzaddabc

 



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