1 files changed, 34 insertions, 0 deletions
diff --git a/node_modules/locutus/php/math/is_nan.js b/node_modules/locutus/php/math/is_nan.js
new file mode 100644
index 0000000..58154d1
--- /dev/null
+++ b/node_modules/locutus/php/math/is_nan.js
@@ -0,0 +1,34 @@
+'use strict';
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+module.exports = function is_nan(val) {
+  // eslint-disable-line camelcase
+  //  discuss at: http://locutus.io/php/is_nan/
+  // original by: Onno Marsman (https://twitter.com/onnomarsman)
+  //    input by: Robin
+  //   example 1: is_nan(NaN)
+  //   returns 1: true
+  //   example 2: is_nan(0)
+  //   returns 2: false
+
+  var warningType = '';
+
+  if (typeof val === 'number' && isNaN(val)) {
+    return true;
+  }
+
+  // Some errors for maximum PHP compatibility
+  if ((typeof val === 'undefined' ? 'undefined' : _typeof(val)) === 'object') {
+    warningType = Object.prototype.toString.call(val) === '[object Array]' ? 'array' : 'object';
+  } else if (typeof val === 'string' && !val.match(/^[+-]?\d/)) {
+    // simulate PHP's behaviour: '-9a' doesn't give a warning, but 'a9' does.
+    warningType = 'string';
+  }
+  if (warningType) {
+    throw new Error('Warning: is_nan() expects parameter 1 to be double, ' + warningType + ' given');
+  }
+
+  return false;
+};
+//# sourceMappingURL=is_nan.js.map
+\ No newline at end of file