jpsierens

// Create the context for user related data
export const UserContext = React.createContext();

const user = {
  name: 'Jean-Pierre',
  sex: 'Yes'
}

// provider the user context anywhere in the app
function App() {

jpsierens

; Now let’s formalize the process in terms of procedures. We start with a value for the radicand (the number whose square root we are trying to compute) and a value for the guess. If the guess is good enough for our purposes, we are done; if not, we must repeat the process with an improved guess. We write this basic strategy as a procedure:

(define (improve guess x)
  (average guess (/ x guess)))

(define (average x y)
  (/ (+ x y) 2))

(define (square x)
  (* x x))

(define (good-enough? guess x)
  (< (abs (- (square guess) x)) 0.001))

(define (sqrt-iter guess x)
  (if (good-enough? guess x)
      ; return guess
      guess 
      ; otherwise
      (sqrt-iter (improve guess x) x
)))

(define (sqrt x)
  (sqrt-iter 1.0 x))

(sqrt 9)

jpsierens

function imageFit (img) {
	$(img)
		.attr('startwidth', $(img).width())
		.attr('startheight', $(img).height());
		//add 100% width to the container, so that the image stretches above its max width.
		.parent().css('width','100%');
	//initial fit
	fit();

	// Re-adjust when window width is changed