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Currency validation method for the jQuery Validation plugin. Decimal place is optional but if included, it requires 2 places. Also, the dollar sign is optional. EDIT: Original gist did not work with $ sign being optional. This gist adds the optional functionality for dollar, euro and pound.
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| // Validation method for variable currency | |
| $.validator.addMethod("currency", function (value, element) { | |
| return this.optional(element) || /^(?:(\$|€|£))?(\d{1,3}(\,\d{3})*|(\d+))(\.\d{2})?$/.test(value); | |
| }, "Please specify a valid amount"); | |
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