117 lines
2.6 KiB
Markdown
117 lines
2.6 KiB
Markdown
<!--
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@license Apache-2.0
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Copyright (c) 2018 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# uncapitalizeKeys
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> Convert the first letter of each object key to lowercase.
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
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<section class="intro">
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</section>
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<!-- /.intro -->
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<!-- Package usage documentation. -->
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<section class="usage">
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## Usage
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```javascript
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var uncapitalizeKeys = require( '@stdlib/utils/uncapitalize-keys' );
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```
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#### uncapitalizeKeys( obj )
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Converts the first letter of each `object` key to lowercase, mapping the transformed keys to a new `object` having the same values.
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```javascript
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var obj1 = {
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'BeepBoop': 1,
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'FooBar': 2
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};
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var obj2 = uncapitalizeKeys( obj1 );
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// returns { 'beepBoop': 1, 'fooBar': 2 }
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```
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</section>
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<!-- /.usage -->
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<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="notes">
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## Notes
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- The function only transforms **own** properties. Hence, the function does **not** transform inherited properties.
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- The function **shallow** copies key values.
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</section>
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<!-- /.notes -->
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<!-- Package usage examples. -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var uncapitalizeKeys = require( '@stdlib/utils/uncapitalize-keys' );
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var obj1 = {
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'AA': 'beep',
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'BB': 'boop',
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'CC': 'foo',
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'DD': 'bar'
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};
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var obj2 = uncapitalizeKeys( obj1 );
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console.dir( obj2 );
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// => { 'aA': 'beep', 'bB': 'boop', 'cC': 'foo', 'dD': 'bar' }
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```
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</section>
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<!-- /.examples -->
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<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="references">
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</section>
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<!-- /.references -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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</section>
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<!-- /.links -->
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