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Diffstat (limited to 'tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/math/expm1/shim.js')
-rw-r--r--tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/math/expm1/shim.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/math/expm1/shim.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/math/expm1/shim.js
new file mode 100644
index 0000000000..9c8c236085
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/math/expm1/shim.js
@@ -0,0 +1,16 @@
+// Thanks: https://github.com/monolithed/ECMAScript-6
+
+'use strict';
+
+var exp = Math.exp;
+
+module.exports = function (x) {
+ if (isNaN(x)) return NaN;
+ x = Number(x);
+ if (x === 0) return x;
+ if (x === Infinity) return Infinity;
+ if (x === -Infinity) return -1;
+
+ if ((x > -1.0e-6) && (x < 1.0e-6)) return x + x * x / 2;
+ return exp(x) - 1;
+};