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mattpuchlerz/BeginningOfWeek.js

Created January 15, 2010 20:12
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BeginningOfWeek.js
Date.prototype.beginningOfWeek = function (startOfWeek) {
startOfWeek = startOfWeek || 0;
return new Date( this - ( (this.getDay() - startOfWeek) * 86400000) );
}
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