Number.prototype.countDecimals = function () { if(Math.floor(this.valueOf()) === this.valueOf()) return 0; return this.toString().split(“.”)[1].length || 0; } When bound to the prototype, this allows you to get the decimal count (countDecimals();) directly from a number variable. E.G. var x = 23.453453453; x.countDecimals(); // 9 It works by converting the number to a string, splitting at the . … Read more
ul > li only does the immediate children. So, for example, to do only the top level list elements you could use: #parent > li Note: this isn’t supported on IE6. The common workaround for backwards compatibility is to do something like this: #parent li { /* style appropriately */ } #parent li li { … Read more
in IE, you can use event.returnValue = false; to achieve the same result. And in order not to get an error, you can test for the existence of preventDefault: if(event.preventDefault) event.preventDefault(); You can combine the two with: event.preventDefault ? event.preventDefault() : (event.returnValue = false);
Seeing red errors Uncaught SyntaxError: Unexpected token < in your Chrome developer’s console tab is an indication of HTML in the response body. What you’re actually seeing is your browser’s reaction to the unexpected top line <!DOCTYPE html> from the server.
I’m still learning JavaScript, and the only way that I’ve found which works for me to compare two dates without the time is to use the setHours method of the Date object and set the hours, minutes, seconds and milliseconds to zero. Then compare the two dates. For example, date1 = new Date() date2 = … Read more