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Roadmap/00 - SINTAXIS, VARIABLES, TIPOS DE DATOS Y HOLA MUNDO/javascript Expand file tree Collapse file tree 1 file changed +37
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+ // https://developer.mozilla.org/es/docs/Web/JavaScript
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+
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+ // Comentario una linea
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+
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+ /*
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+ Comentario
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+ varias
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+ lineas
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+ */
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+
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+ // Declarar una variable
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+ var var1 ;
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+ let var2 ;
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+ // Declarar una constante
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+ const CONSTANTE = "constante" ;
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+
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+
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+ // Tipos datos primitivos
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+ // STRING
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+ let cadena = "comillas dobles" ;
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+ let cadena2 = 'comillas simples'
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+ // NUMBER
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+ let numEntero = 1 ;
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+ let numDecimal = 0.1 ;
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+ // BOOLEAN
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+ let booleano = true ;
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+ // UNDEFINED
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+ let noDefinida ;
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+ // NULL
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+ let y = null ;
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+ // SYMBOL
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+ let sym = Symbol ( 'descripcion' ) ;
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+ // BIGINT
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+ let big = 1234567890123456789012345678901234567890n ;
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+
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+ // Imprimir saludo por terminal
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+ console . log ( "¡Hola, JavaScript!" ) ;
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