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ClearPromptChar

configuration

Specifies whether the widget will replace the prompt characters with spaces on blur. Prompt chars will be shown again on focus (available since Q2 2014 SP1).

clearPromptChar

Boolean

Default: false

<input id="maskedtextbox" />
<script>
$("#maskedtextbox").kendoMaskedTextBox({
    mask: "000000",
    clearPromptChar: true
});
</script>