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December 18, 2015 08:19
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Helpful JS extensions
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Storage.prototype.setObject = function(key, value) { | |
this.setItem(key, JSON.stringify(value)); | |
} | |
Storage.prototype.getObject = function(key) { | |
return JSON.parse(this.getItem(key)); | |
} | |
// Extend the default Number object with a formatMoney() method: | |
// usage: someVar.formatMoney(decimalPlaces, symbol, thousandsSeparator, decimalSeparator) | |
// defaults: (2, "$", ",", ".") | |
Number.prototype.formatMoney = function(places, symbol, thousand, decimal) { | |
places = !isNaN(places = Math.abs(places)) ? places : 2; | |
symbol = symbol !== undefined ? symbol : "$"; | |
thousand = thousand || ","; | |
decimal = decimal || "."; | |
var number = this, | |
negative = number < 0 ? "-" : "", | |
i = parseInt(number = Math.abs(+number || 0).toFixed(places), 10) + "", | |
j = (j = i.length) > 3 ? j % 3 : 0; | |
return symbol + negative + (j ? i.substr(0, j) + thousand : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thousand) + (places ? decimal + Math.abs(number - i).toFixed(places).slice(2) : ""); | |
}; |
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