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Ibrahim Hernández Jorge
Asked: 2020-07-04 03:02:47 +0800 CST 2020-07-04 03:02:47 +0800 CST

Create Javascript Object with String Templates

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I wanted to know if I can define an object in javascript with string templates (``) and if so, what would be the correct syntax? I mean something like:

var mi_objeto = `{prop: 1, atr: 2}`;
javascript

1 Answers

  1. Best Answer

    The way to do this is to use eval`` to evaluate the expression. String templates return a string, and you pass that string as an argument to eval:

    var mi_objeto = eval(`{prop: 1, atr: 2}`);

    Although it looks like it should work, this gives a syntax error (I don't know the reason for it). The way to fix it is to wrap the object in parentheses so that the evaluation succeeds:

    var mi_objeto = eval(`({prop: 1, atr: 2})`);

console.log(mi_objeto);

    If you have the string with the object inside it stored in a variable, you just have to concatenate the parentheses:

    var objeto_cadena = `{prop: 1, atr: 2}`;
var mi_objeto = eval("("+objeto_cadena+")");

console.log(mi_objeto);

    PS: The information has been obtained from this SO entry in English: https://stackoverflow.com/questions/4010775/javascript-eval-and-object-evaluation

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