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CSSStyleDeclaration JS Conversion


Invoer DatumtydPlaaslike verstekwaarde - eienskap

❮ Voer DatetimeLocal Object in

Voorbeeld

Verander die verstekwaarde van 'n datum-tyd-veld:

document.getElementById("myLocalDate").defaultValue = "2015-01-02T11:42:13.510";

Definisie en gebruik

Die defaultValue-eienskap stel of gee die verstekwaarde van 'n plaaslike datum-tyd-veld terug.

Let wel: Die verstekwaarde is die waarde gespesifiseer in die HTML -waarde- kenmerk.

Die verskil tussen die defaultValue en value- eienskap is dat defaultValue die verstekwaarde bevat, terwyl waarde die huidige waarde bevat nadat sommige veranderinge aangebring is. As daar geen veranderinge is nie, is verstekwaarde en waarde dieselfde (sien "Meer voorbeelde" hieronder).

Die defaultValue-eienskap is nuttig wanneer jy wil uitvind of die plaaslike datum-tyd-veld verander is.


Blaaierondersteuning

Property
defaultValue Yes 10.0 Yes Yes Yes

Let wel: Die <input type="datetime-local">-element wys geen datum-tyd-veld/-kalender in Firefox nie.


Sintaksis

Gee die defaultValue-eienskap terug:

datetimelocalObject.defaultValue

Stel die defaultValue-eienskap:

datetimelocalObject.defaultValue = value

Eiendomswaardes

Value Description
value Specifies the default value of the local datetime field


Tegniese besonderhede

Terugkeerwaarde: 'n String, wat die verstekwaarde van die plaaslike datum-tyd-veld verteenwoordig

Meer voorbeelde

Voorbeeld

Kry die verstekwaarde van 'n datum-tyd-veld:

var x = document.getElementById("myLocalDate").defaultValue;

Voorbeeld

'n Voorbeeld wat die verskil tussen die defaultValue en waarde-eienskap wys:

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

❮ Voer DatetimeLocal Object in