jquery autonumeric plugin：想从空白字段中获取null，但它会自动填充零

Question

“autoNumeric”插件会在字段聚焦甚至悬停时立即用零填充输入字段。我想让最终用户将某些字段留空。空白与零不同。有没有解决方案？

Answer 1

查看emptyInputBehavior文件中AutoNumericOptions.js选项的文档：

/* Defines what should be displayed in the element if the raw value is an empty string ('').
 * - 'focus'  : The currency sign is displayed when the input receives focus (default)
 * - 'press'  : The currency sign is displayed whenever a key is being pressed
 * - 'always' : The currency sign is always displayed
 * - 'zero'   : A zero is displayed ('rounded' with or without a currency sign) if the input has no value on focus out
 * - 'null'   : When the element is empty, the `rawValue` and the element value/text is set to `null`. This also allows to set the value to `null` using `anElement.set(null)`.
 */
emptyInputBehavior: {
    null  : 'null',
    focus : 'focus',
    press : 'press',
    always: 'always',
    zero  : 'zero',
},

您想要的是将emptyInputBehavior设置为'focus'（这是默认设置），并且您不会在输入中添加任何“零”。 这与v4中的next版本有关。