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diff --git a/node_modules/core-js/modules/es6.number.to-fixed.js b/node_modules/core-js/modules/es6.number.to-fixed.js
new file mode 100644
index 000000000..c54970d6a
--- /dev/null
+++ b/node_modules/core-js/modules/es6.number.to-fixed.js
@@ -0,0 +1,113 @@
+'use strict';
+var $export      = require('./_export')
+  , toInteger    = require('./_to-integer')
+  , aNumberValue = require('./_a-number-value')
+  , repeat       = require('./_string-repeat')
+  , $toFixed     = 1..toFixed
+  , floor        = Math.floor
+  , data         = [0, 0, 0, 0, 0, 0]
+  , ERROR        = 'Number.toFixed: incorrect invocation!'
+  , ZERO         = '0';
+
+var multiply = function(n, c){
+  var i  = -1
+    , c2 = c;
+  while(++i < 6){
+    c2 += n * data[i];
+    data[i] = c2 % 1e7;
+    c2 = floor(c2 / 1e7);
+  }
+};
+var divide = function(n){
+  var i = 6
+    , c = 0;
+  while(--i >= 0){
+    c += data[i];
+    data[i] = floor(c / n);
+    c = (c % n) * 1e7;
+  }
+};
+var numToString = function(){
+  var i = 6
+    , s = '';
+  while(--i >= 0){
+    if(s !== '' || i === 0 || data[i] !== 0){
+      var t = String(data[i]);
+      s = s === '' ? t : s + repeat.call(ZERO, 7 - t.length) + t;
+    }
+  } return s;
+};
+var pow = function(x, n, acc){
+  return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);
+};
+var log = function(x){
+  var n  = 0
+    , x2 = x;
+  while(x2 >= 4096){
+    n += 12;
+    x2 /= 4096;
+  }
+  while(x2 >= 2){
+    n  += 1;
+    x2 /= 2;
+  } return n;
+};
+
+$export($export.P + $export.F * (!!$toFixed && (
+  0.00008.toFixed(3) !== '0.000' ||
+  0.9.toFixed(0) !== '1' ||
+  1.255.toFixed(2) !== '1.25' ||
+  1000000000000000128..toFixed(0) !== '1000000000000000128'
+) || !require('./_fails')(function(){
+  // V8 ~ Android 4.3-
+  $toFixed.call({});
+})), 'Number', {
+  toFixed: function toFixed(fractionDigits){
+    var x = aNumberValue(this, ERROR)
+      , f = toInteger(fractionDigits)
+      , s = ''
+      , m = ZERO
+      , e, z, j, k;
+    if(f < 0 || f > 20)throw RangeError(ERROR);
+    if(x != x)return 'NaN';
+    if(x <= -1e21 || x >= 1e21)return String(x);
+    if(x < 0){
+      s = '-';
+      x = -x;
+    }
+    if(x > 1e-21){
+      e = log(x * pow(2, 69, 1)) - 69;
+      z = e < 0 ? x * pow(2, -e, 1) : x / pow(2, e, 1);
+      z *= 0x10000000000000;
+      e = 52 - e;
+      if(e > 0){
+        multiply(0, z);
+        j = f;
+        while(j >= 7){
+          multiply(1e7, 0);
+          j -= 7;
+        }
+        multiply(pow(10, j, 1), 0);
+        j = e - 1;
+        while(j >= 23){
+          divide(1 << 23);
+          j -= 23;
+        }
+        divide(1 << j);
+        multiply(1, 1);
+        divide(2);
+        m = numToString();
+      } else {
+        multiply(0, z);
+        multiply(1 << -e, 0);
+        m = numToString() + repeat.call(ZERO, f);
+      }
+    }
+    if(f > 0){
+      k = m.length;
+      m = s + (k <= f ? '0.' + repeat.call(ZERO, f - k) + m : m.slice(0, k - f) + '.' + m.slice(k - f));
+    } else {
+      m = s + m;
+    } return m;
+  }
+});
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