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alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex

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<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other References

CSSStyleDeclaration JS Conversion


Propiedad de valor de texto de entrada

❮ Objeto de texto de entrada

Ejemplo

Cambiar el valor de un campo de texto:

document.getElementById("myText").value = "Johnny Bravo";

Definición y uso

La propiedad de valor establece o devuelve el valor del atributo de valor de un campo de texto.

La propiedad de valor contiene el valor predeterminado O el valor que ingresa un usuario (o un valor establecido por un script).


Compatibilidad con navegador

Property
value Yes Yes Yes Yes Yes

Sintaxis

Devuelve la propiedad de valor:

textObject.value

Establezca la propiedad de valor:

textObject.value = text

Valores de propiedad

Value Description
text Specifies the value of the input text field


Detalles técnicos

Valor de retorno: Una cadena, que representa el valor del campo de texto.

Más ejemplos

Ejemplo

Obtener el valor de un campo de texto:

var x = document.getElementById("myText").value;

Ejemplo

Validación de formulario:

var at = document.getElementById("email").value.indexOf("@");
var age = document.getElementById("age").value;
var fname = document.getElementById("fname").value;
submitOK = "true";

if (fname.length > 10) {
  alert("The name may have no more than 10 characters");
  submitOK = "false";
}

if (isNaN(age) || age < 1 || age > 100) {
  alert("The age must be a number between 1 and 100");
  submitOK = "false";
}

if (at == -1) {
  alert("Not a valid e-mail!");
  submitOK = "false";
}

if (submitOK == "false") {
  return false;
}

Ejemplo

Lista desplegable en un formulario:

var mylist = document.getElementById("myList");
document.getElementById("favorite").value = mylist.options[mylist.selectedIndex].text;

Ejemplo

Otra lista desplegable:

var no = document.getElementById("no");
var option = no.options[no.selectedIndex].text;
var txt = document.getElementById("result").value;
txt = txt + option;
document.getElementById("result").value = txt;

Ejemplo

Un ejemplo que muestra la diferencia entre la propiedad defaultValue y value:

var x = document.getElementById("myText");
var defaultVal = x.defaultValue;
var currentVal = x.value;

páginas relacionadas

Referencia de HTML: atributo de valor de <entrada> de HTML


❮ Objeto de texto de entrada