JavaScript Array filter()❮ Previous JavaScript Array Reference Next ❯ Example 1Return an array of all values in ages[] that are 18 or over:const ages = [32, 33, 16, 40];const result = ages.filter(checkAdult);function checkAdult(age) {...
Services filter input × W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Free Tutorials Enjoy our free tutorials like millions of other internet users since 1999 References Explore our ...
filter(function(color) { return color !== "Green"; }); console.log(nonGreenColors); 5. 针对“菜鸟”可能提出的问题,给出额外的学习资源和建议 学习资源: MDN Web Docs - JavaScript 数组 W3Schools - JavaScript 数组 学习建议: 多动手实践,通过编写代码来加深理解。 尝试使用不同的数组方法来...
Filter the values of an array using a callback function: <?phpfunction test_odd($var) { return($var & 1); }$a1=array(1,3,2,3,4);print_r(array_filter($a1,"test_odd"));?> Try it Yourself » Definition and UsageThe array_filter() function filters the values of an array us...
filter() Creates a new array with every element in an array that pass a test find() Returns the value of the first element in an array that pass a test findIndex() Returns the index of the first element in an array that pass a test forEach() Calls a function for each array element...
array_filter() Filters the values of an array using a callback function array_flip() Flips/Exchanges all keys with their associated values in an array array_intersect() Compare arrays, and returns the matches (compare values only) array_intersect_assoc() Compare arrays and returns the matches...
// note - findIndex might be replaced with some(), filter(), forEach() // or any other function/approach if you need // additional browser support, or you might use a polyfill const index = this.values.findIndex(item => {
JavaScript创建新数组 您可以组合使用Array.includes、Array.filter和Array.map函数。 const vehicleList = [{ "_id": "6294790e2fe156d20868b39e", "category_id_tr": "Motosiklet", "category_name_tr": "A1", "category_desc_tr": "Silindir hacmi 125 santimetreküpü, gücü 11 kilovatı ve gü...
fruits = fruits.filter(function(value) { return value != toDelete; }); // [ 'Banana', 'Orange', 'Mango' ] Finding an Element Thefind()method returns the value of the first element in an array that pass a test (provided as a function). ...
fruitsinstanceofArray// returns true Reference http://www.w3schools.com/js/js_arrays.asp http://www.w3schools.com/js/js_array_methods.asp http://www.w3schools.com/jsref/jsref_filter.asp http://www.w3schools.com/jsref/jsref_find.asp...