What is Factors?

If we multiply two numbers, it gives a product. The two numbers are the factors of the product.

For example:

5 x 2 = 10

So 2 and 5 is the factors of 10

To practice to find the factors of big numbers, you can use the circles below. First, you need to enter a number in the green circle. This number is the number which you want to find its factors.

For most of us, Date formatting in JavaScript is handled by external library/plugin (jQuery’s dateFormat, jQuery-UI’s datepicker). But if somehow your project has no access to them, you can extend Date by yourself.

window.Date.prototype.format = function(fmt){
	if (!fmt) return this.toString();
	
	var rgx = /[a-zA-Z]+/g;
	if (fmt.replaceAll) {
		var year = this.getFullYear().toString();
		var month = this.getMonth();
		var date = this.getDate();            
		var arMonths = ["JAN", "FEB", "MAR", "APR", "MAY", "JUN",
			"JUL", "AUG", "SEP", "OCT", "NOV", "DEC"];
		var that = this;
		fmt = fmt.replaceAll(rgx, function (f) {
			switch (f) {
				case "yyyy": return year;
				case "yy": return year.substr(2);
				case "MMM": return arMonths[month];
				case "dd": return date.toString().padStart(2, "0"); 
			}
			return f;
		});
	}
	return fmt;
}

Now you can the new format function in the Date class

As shown above, if format function is unable to handle the format string specified, it will just returns the original text. What you need to do now is to add the new case inside switch(f){ …. }. For example, we want to handle HH format.

			switch (f) {
				// ... SNIP ...
				case "HH": return that.getHours().toString().padStart(2, "0");
			}

Now, we should see the correct value.

I hope it helps. Cheers!

If you’re a primary school students struggling to remember the multiplications, hopefully this will help you to master it.

Have fun and collect these trophies!!!

To play the game, just select the number, then click Start button. To answer, type the number then press ENTER key.

Good luck!