我需要修改货币过滤器以便能够指定小数位数...我需要在不同的地方使用货币的0,2和4位小数...我在想“| flexCurrency:4“但无法找到必要的文档来弄清楚如何覆盖货币过滤器。我在Angular中想象的过滤器看起来像这样:
.filter('flexCurrency', flexCurrencyFilter)
function flexCurrencyFilter($filter) {
return function (input, decPlaces) {
decPlaces = decPlaces || 0;
// Check for invalid inputs
if (isNaN(input) || !input || Math.abs(input) === 0 || (Math.abs(input) > 0 && Math.abs(input) < 1)) {
return '-';
}
var out = input;
//Deal with the minus (negative numbers)
var minus = out < 0;
out = Math.abs(out);
out = $filter('number')(out, decPlaces);
// Add the minus and the symbol
if (minus) {
return '( $' + out + ')';
} else {
return '$' + out;
}
};
}
答案 0 :(得分:1)
货币过滤器位于source code,只需调整它以获取额外的arg。这应该有效:
flexCurrency (value, currency, decimals) {
value = parseFloat(value)
if (!isFinite(value) || (!value && value !== 0)) return ''
currency = currency != null ? currency : '$'
var stringified = Math.abs(value).toFixed(decimals)
var _int = stringified.slice(0, -1 - decimals)
var i = _int.length % 3
var head = i > 0
? (_int.slice(0, i) + (_int.length > 3 ? ',' : ''))
: ''
var _float = stringified.slice(-1 - decimals)
var sign = value < 0 ? '-' : ''
return sign + currency + head +
_int.slice(i).replace(digitsRE, '$1,') +
_float
},