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any-in-by/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# anyInBy
+
+> Test whether at least one property in an object passes a test implemented by a predicate function.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var anyInBy = require( '@stdlib/utils/any-in-by' );
+```
+
+#### anyInBy( object, predicate\[, thisArg ] )
+
+Tests whether at least one property in an `object` passes a test implemented by a `predicate` function.
+
+```javascript
+function isNegative( value ) {
+    return ( value < 0 );
+}
+
+var obj = {
+    'a': 1,
+    'b': 2,
+    'c': -1
+};
+
+var bool = anyInBy( obj, isNegative );
+// returns true
+```
+
+If a `predicate` function returns a truthy value, the function **immediately** returns `true`.
+
+```javascript
+function isPositive( value ) {
+    if ( value < 0 ) {
+        throw new Error( 'should never reach this line' );
+    }
+    return ( value > 0 );
+}
+
+var obj = {
+    'a': 1,
+    'b': -2,
+    'c': 3
+};
+
+var bool = anyInBy( obj, isPositive );
+// returns true
+```
+
+The invoked `function` is provided three arguments:
+
+-   `value`: property value
+-   `key`: property key
+-   `object`: input object
+
+To set the function execution context, provide a `thisArg`.
+
+```javascript
+function sum( value ) {
+    this.sum += value;
+    this.count += 1;
+    return ( value < 0 );
+}
+
+var obj = {
+    'a': 1,
+    'b': 2,
+    'c': 3,
+    'd': -4
+};
+
+var context = {
+    'sum': 0,
+    'count': 0
+};
+
+var bool = anyInBy( obj, sum, context );
+// returns true
+
+var mean = context.sum / context.count;
+// returns 0.5
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   The `obj` object may contain own properties as well as inherited properties from its prototype chain.
+
+-   If provided an empty object, the function returns `false`.
+
+    ```javascript
+    function alwaysTrue() {
+        return true;
+    }
+    var bool = anyInBy( {}, alwaysTrue );
+    // returns false
+    ```
+
+</section>
+
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var randu = require( '@stdlib/random/base/randu' );
+var anyInBy = require( '@stdlib/utils/any-in-by' );
+
+function threshold( value ) {
+    return ( value > 0.95 );
+}
+
+var bool;
+var obj = {};
+var i;
+
+for ( i = 0; i < 100; i++ ) {
+    obj[i] = randu();
+}
+
+bool = anyInBy( obj, threshold );
+// returns <boolean>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- 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. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">

any-in-by/benchmark/benchmark.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pkg = require( './../package.json' ).name;
+var anyInBy = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var bool;
+	var obj;
+	var i;
+
+	function predicate( v ) {
+		return isnan( v );
+	}
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = {
+			'a': i,
+			'b': i+1,
+			'c': i+2,
+			'd': i+3,
+			'e': i+4,
+			'f': NaN
+		};
+		bool = anyInBy( obj, predicate );
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::built-in', function benchmark( b ) {
+	var bool;
+	var keys;
+	var obj;
+	var i;
+
+	function predicate( v ) {
+		return isnan( v );
+	}
+	function testPredicate(key) {
+		return predicate(obj[key]);
+	}
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = {
+			'a': i,
+			'b': i+1,
+			'c': i+2,
+			'd': i+3,
+			'e': i+4,
+			'f': NaN
+		};
+		keys = Object.keys( obj );
+		bool = keys.some(testPredicate);
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::loop', function benchmark( b ) {
+	var bool;
+	var keys;
+	var obj;
+	var i;
+	var j;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = {
+			'a': i,
+			'b': i+1,
+			'c': i+2,
+			'd': i+3,
+			'e': i+4,
+			'f': NaN
+		};
+		keys = Object.keys( obj );
+		bool = false;
+		for ( j = 0; j < keys.length; j++ ) {
+			if ( isnan( obj[ keys[j] ] ) ) {
+				bool = true;
+				break;
+			}
+		}
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should be a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

any-in-by/benchmark/julia/REQUIRE

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+julia 1.5
+BenchmarkTools 0.5.0