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pg.js
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pg.js
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function expression(num, op){
if(!op)
return num;
return op(num);
}
function zero(op) { return expression(0, op); }
function one(op) { return expression(1, op); }
function two(op) { return expression(2, op); }
function three(op) { return expression(3, op); }
function four(op) { return expression(4, op); }
function five(op) { return expression(5, op); }
function six(op) { return expression(6, op); }
function seven(op) { return expression(7, op); }
function eight(op) { return expression(8, op); }
function nine(op) { return expression(9, op); }
function plus(x) {
return function(y) {
return y + x;
}
}
function minus(x) {
return function(y) {
return y - x;
}
}
function times(x) {
return function(y) {
return y * x;
}
}
function dividedBy(x) {
return function(y) {
return y / x;
}
}