time-to-botec

Benchmark sampling in different programming languages
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README.md (2027B)


      1 <!--
      2 
      3 @license Apache-2.0
      4 
      5 Copyright (c) 2018 The Stdlib Authors.
      6 
      7 Licensed under the Apache License, Version 2.0 (the "License");
      8 you may not use this file except in compliance with the License.
      9 You may obtain a copy of the License at
     10 
     11    http://www.apache.org/licenses/LICENSE-2.0
     12 
     13 Unless required by applicable law or agreed to in writing, software
     14 distributed under the License is distributed on an "AS IS" BASIS,
     15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16 See the License for the specific language governing permissions and
     17 limitations under the License.
     18 
     19 -->
     20 
     21 # isInteger
     22 
     23 > Test if a finite [double-precision floating-point number][ieee754] is an integer.
     24 
     25 <section class="usage">
     26 
     27 ## Usage
     28 
     29 ```javascript
     30 var isInteger = require( '@stdlib/math/base/assert/is-integer' );
     31 ```
     32 
     33 #### isInteger( x )
     34 
     35 Tests if a finite [double-precision floating-point number][ieee754] is an `integer`.
     36 
     37 ```javascript
     38 var bool = isInteger( 1.0 );
     39 // returns true
     40 ```
     41 
     42 </section>
     43 
     44 <!-- /.usage -->
     45 
     46 <section class="notes">
     47 
     48 ## Notes
     49 
     50 -   The function assumes a **finite** `number`. If provided positive or negative `infinity`, the function will return `true`, when, in fact, the result is undefined. If `x` can be `infinite`, wrap the implementation as follows:
     51 
     52     ```javascript
     53     function check( x ) {
     54         return (
     55             x < Infinity &&
     56             x > -Infinity &&
     57             isInteger( x )
     58         );
     59     }
     60 
     61     var bool = check( Infinity );
     62     // returns false
     63 
     64     bool = check( -Infinity );
     65     // returns false
     66     ```
     67 
     68 </section>
     69 
     70 <!-- /.notes -->
     71 
     72 <section class="examples">
     73 
     74 ## Examples
     75 
     76 <!-- eslint no-undef: "error" -->
     77 
     78 ```javascript
     79 var isInteger = require( '@stdlib/math/base/assert/is-integer' );
     80 
     81 var bool = isInteger( -5.0 );
     82 // returns true
     83 
     84 bool = isInteger( 3.14 );
     85 // returns false
     86 
     87 bool = isInteger( NaN );
     88 // returns false
     89 ```
     90 
     91 </section>
     92 
     93 <!-- /.examples -->
     94 
     95 <section class="links">
     96 
     97 [ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
     98 
     99 </section>
    100 
    101 <!-- /.links -->