项目原始demo,不改动
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  1. // Generated by LiveScript 1.4.0
  2. var max, min, negate, abs, signum, quot, rem, div, mod, recip, pi, tau, exp, sqrt, ln, pow, sin, tan, cos, asin, acos, atan, atan2, truncate, round, ceiling, floor, isItNaN, even, odd, gcd, lcm;
  3. max = curry$(function(x$, y$){
  4. return x$ > y$ ? x$ : y$;
  5. });
  6. min = curry$(function(x$, y$){
  7. return x$ < y$ ? x$ : y$;
  8. });
  9. negate = function(x){
  10. return -x;
  11. };
  12. abs = Math.abs;
  13. signum = function(x){
  14. if (x < 0) {
  15. return -1;
  16. } else if (x > 0) {
  17. return 1;
  18. } else {
  19. return 0;
  20. }
  21. };
  22. quot = curry$(function(x, y){
  23. return ~~(x / y);
  24. });
  25. rem = curry$(function(x$, y$){
  26. return x$ % y$;
  27. });
  28. div = curry$(function(x, y){
  29. return Math.floor(x / y);
  30. });
  31. mod = curry$(function(x$, y$){
  32. var ref$;
  33. return (((x$) % (ref$ = y$) + ref$) % ref$);
  34. });
  35. recip = (function(it){
  36. return 1 / it;
  37. });
  38. pi = Math.PI;
  39. tau = pi * 2;
  40. exp = Math.exp;
  41. sqrt = Math.sqrt;
  42. ln = Math.log;
  43. pow = curry$(function(x$, y$){
  44. return Math.pow(x$, y$);
  45. });
  46. sin = Math.sin;
  47. tan = Math.tan;
  48. cos = Math.cos;
  49. asin = Math.asin;
  50. acos = Math.acos;
  51. atan = Math.atan;
  52. atan2 = curry$(function(x, y){
  53. return Math.atan2(x, y);
  54. });
  55. truncate = function(x){
  56. return ~~x;
  57. };
  58. round = Math.round;
  59. ceiling = Math.ceil;
  60. floor = Math.floor;
  61. isItNaN = function(x){
  62. return x !== x;
  63. };
  64. even = function(x){
  65. return x % 2 === 0;
  66. };
  67. odd = function(x){
  68. return x % 2 !== 0;
  69. };
  70. gcd = curry$(function(x, y){
  71. var z;
  72. x = Math.abs(x);
  73. y = Math.abs(y);
  74. while (y !== 0) {
  75. z = x % y;
  76. x = y;
  77. y = z;
  78. }
  79. return x;
  80. });
  81. lcm = curry$(function(x, y){
  82. return Math.abs(Math.floor(x / gcd(x, y) * y));
  83. });
  84. module.exports = {
  85. max: max,
  86. min: min,
  87. negate: negate,
  88. abs: abs,
  89. signum: signum,
  90. quot: quot,
  91. rem: rem,
  92. div: div,
  93. mod: mod,
  94. recip: recip,
  95. pi: pi,
  96. tau: tau,
  97. exp: exp,
  98. sqrt: sqrt,
  99. ln: ln,
  100. pow: pow,
  101. sin: sin,
  102. tan: tan,
  103. cos: cos,
  104. acos: acos,
  105. asin: asin,
  106. atan: atan,
  107. atan2: atan2,
  108. truncate: truncate,
  109. round: round,
  110. ceiling: ceiling,
  111. floor: floor,
  112. isItNaN: isItNaN,
  113. even: even,
  114. odd: odd,
  115. gcd: gcd,
  116. lcm: lcm
  117. };
  118. function curry$(f, bound){
  119. var context,
  120. _curry = function(args) {
  121. return f.length > 1 ? function(){
  122. var params = args ? args.concat() : [];
  123. context = bound ? context || this : this;
  124. return params.push.apply(params, arguments) <
  125. f.length && arguments.length ?
  126. _curry.call(context, params) : f.apply(context, params);
  127. } : f;
  128. };
  129. return _curry();
  130. }