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-rw-r--r--node_modules/core-js/modules/_string-at.js17
1 files changed, 17 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/_string-at.js b/node_modules/core-js/modules/_string-at.js
new file mode 100644
index 00000000..88d66bd1
--- /dev/null
+++ b/node_modules/core-js/modules/_string-at.js
@@ -0,0 +1,17 @@
+var toInteger = require('./_to-integer');
+var defined = require('./_defined');
+// true -> String#at
+// false -> String#codePointAt
+module.exports = function (TO_STRING) {
+ return function (that, pos) {
+ var s = String(defined(that));
+ var i = toInteger(pos);
+ var l = s.length;
+ var a, b;
+ if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
+ a = s.charCodeAt(i);
+ return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+ ? TO_STRING ? s.charAt(i) : a
+ : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+ };
+};