slopeofhope81’s gists

slopeofhope81 / gist:8826558

Created February 5, 2014 15:49

Write a function countZeroes, which takes an array of numbers as its argument and returns the amount of zeroes that occur in it. Use reduce

	Make the function abstract using reduce.
	function countZeroes(numbers){
	function count(total,num){
	return total+(num ===0?1:0); <<===this is ternary equation!!!
	}
	return reduce(count, 0, numbers)
	};

slopeofhope81 / gist:8825339

Created February 5, 2014 14:53

Write a function extractDate that takes such a paragraph as its argument, extracts the date, and returns it as a date object.

	//"died 27/04/2006: Black Leclère"

	var p = "died 27/04/2006: Black Leclère"

	function extractDate(p) {
	function find(start, length) {
	return p.slice(start, start + length)
	}
	return new Date(find(11, 4), find(8, 2) - 1, find(5, 2))
	}

slopeofhope81 / eloquent.range

Created January 29, 2014 15:59

//Write a range function that takes two arguments, start and end, //and returns an array containing all the numbers from start up to //(and including) end.

	function range(start, end, step) {
	var arr = [];
	if (arguments[2] == undefined) {
	for (var i = start; i <= end; i++)
	arr.push(i);
	} else {
	for (var i = start; i <= end; i += step)
	arr.push(i);
	}
	return arr;

slopeofhope81 / eloquent.email.content

Created January 25, 2014 22:14

my first extensive function/ I need to find a way to refactor...and encapsulate

	var mailArchive = retrieveMails();
	var livingCats = {"Spot": true};

	for (var mail = 0; mail < mailArchive.length; mail++)
	var paragraphs = mailArchive[mail].split("\n"); //split the paragraphs
	for (var paragraph = 0; paragraph < paragraph.length; paragraph++){
	if (startsWith(paragraph, "born")){
	var names = catNames(paragraphs[paragraph])
	for (var name = 0; name < names.length; names++)
	livingCats[names[name]] = true;

slopeofhope81 / eloquent.ex.4.4

Created January 24, 2014 19:31

/*4.4)Write a function called startsWith that takes two arguments, both strings. It returns true when the first argument starts with the characters in the second argument, and false otherwise. */

	function startsWith(a, b) {
	if (b.slice(0, a.length) == a) return true;
	else return false;
	}
	a="steve"
	b="steve is coding hard"
	document.write(startsWith(a,b));

slopeofhope81 / eloquent.ex.4.2

Created January 24, 2014 18:01

/*Write a function range that takes one argument, a positive number, and returns an array containing all numbers from 0 up to and including the given number.*/


	var arr = [];

	function list(n) {
	for (var i = 0; i <= n; i++) {
	arr[i] = i;
	}
	document.write(arr);
	}

slopeofhope81 / eloquent.ex.3.2

Created January 24, 2014 17:04

/*Write a function greaterThan, which takes one argument, a number, and returns a function that represents a test. When this returned function is called with a single number as argument, it returns a boolean: true if the given number is greater than the number that was used to create the test function, and false otherwise.*/


	function greaterThan(num) {
	return function test(num1) {
	if (num > num1) {
	return true;
	} else {
	return false;
	}
	}
	}

slopeofhope81 / gist:8597620

Created January 24, 2014 13:52

//Write a program to ask yourself, using prompt, what the value of 2 + 2 is. If the answer is "4", use alert to say something praising. If it is "3" or "5", say "Almost!". In other cases, say something mean.

	//Write a program to ask yourself, using prompt, what the value of 2 + 2 is. If the answer is "4", use alert to say something praising. If it is "3" or "5", say "Almost!". In other cases, say something mean.

	answer = Number(prompt("What is the value of 2+2?"));
	if (answer === 4) {
	alert("you are right!");
	} else if (Math.abs(4 - answer) > 2) {
	alert("you did okay");
	} else {
	alert("lets go back to kindergarten");
	}

slopeofhope81 / gist:8597398

Created January 24, 2014 13:39

Print out ten lines. On the first line there is one '#' character. On the second there are two. And so on.

	//Print out ten lines. On the first line there is one '#' character. On the second there are two. And so on.

	var string = "#";
	var i = 0;
	var line =""
	while (10 > i) {
	line += string
	document.write(line+"\n");
	i++;
	}

slopeofhope81 / gist:8596970

Created January 24, 2014 13:13

// Calculate and show the value of 2**10

	// Calculate and show the value of 2**10

	var total = 1;
	var i = 0;
	var power = function (n) {
	while (i < 10) {
	total *= 2;
	i++;
	};
	return total;

Steve Lim slopeofhope81