tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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safe-integers.js (853B)

      1 // Copyright (c) 2016 The V8 Project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-number.issafeinteger
      6 description: >
      7  Return true if argument is a safe integer
      8 info: |
      9  Number.isSafeInteger ( number )
     10 
     11  [...]
     12  3. Let integer be ToInteger(number).
     13  4. If integer is not equal to number, return false.
     14  5. If abs(integer) ≤ 2**53-1, return true.
     15  [...]
     16 ---*/
     17 
     18 assert.sameValue(Number.isSafeInteger(1), true, "1");
     19 assert.sameValue(Number.isSafeInteger(-0), true, "-0");
     20 assert.sameValue(Number.isSafeInteger(0), true, "0");
     21 assert.sameValue(Number.isSafeInteger(-1), true, "-1");
     22 assert.sameValue(Number.isSafeInteger(9007199254740991), true, "9007199254740991");
     23 assert.sameValue(Number.isSafeInteger(-9007199254740991), true, "-9007199254740991");
     24 
     25 reportCompare(0, 0);