La función eval () evalúa un código JavaScript representado como una cadena de caracteres (string), sin referenciar a un objeto en particular.

Description The eval() method evaluates or executes an argument. If the argument is an expression, eval() evaluates the expression. If the argument is one or more JavaScript statements, eval() …

Un llamado a eval(code) ejecuta la cadena de código y devuelve el resultado de la última sentencia. Es raramente usado en JavaScript moderno, y usualmente no es necesario.

eval() evaluates the passed string as a Python expression and returns the result. For example, eval("1 + 1") interprets and executes the expression "1 + 1" and returns the result (2).

Jul 23, 2025 · Python eval function comes with the facility of explicitly passing a list of functions or variables that it can access. We need to pass it as an argument in the form of a dictionary.

La función eval ejecuta la instrucción que se le pasa por parámetro, así que ejecutará esta sentencia, lo que dará como resultado que se escriba un 8 en la página web.

Sep 25, 2019 · Rarely used in modern JavaScript, as there’s usually no need. Can access outer local variables. That’s considered bad practice. Instead, to eval the code in the global scope, use …

In some programming languages, eval, short for evaluate, is a function which evaluates a string as though it were an expression in the language, and returns a result; in others, it executes multiple …

Definition and Usage The eval() function evaluates the specified expression, if the expression is a legal Python statement, it will be executed.

Jan 21, 2026 · The eval () function evaluates JavaScript code represented as a string and returns its completion value. The source is parsed as a script.