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...
❮PreviousJavaScript ArrayReferenceNext❯ Example 1 Return an array of all values in ages[] that are 18 or over: constages = [32,33,16,40]; constresult = ages.filter(checkAdult); functioncheckAdult(age) { returnage >=18; }
There is no built-in function for finding the highest value in a JavaScript array.The fastest code to find the highest number is to use a home made method.This function loops through an array comparing each value with the highest value found:...
JavaScript 数组 some() 方法❮ 上一节 JavaScript 数组参考 下一节 ❯ 实例检查ages 数组中是否有 18 或以上的值:var ages = [3, 10, 18, 20];function checkAdult(age) { return age >= 18;}function myFunction() { document.getElementById("demo").innerHTML = ages.some(checkAdult);...
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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...
❮PreviousJavaScript ArrayReferenceNext❯ Examples Join two arrays: constarr1 = ["Cecilie","Lone"]; constarr2 = ["Emil","Tobias","Linus"]; constchildren = arr1.concat(arr2); Try it Yourself » Join three arrays: constarr1 = ["Cecilie","Lone"]; ...
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...
您可以简单地使用w3schools 上本课中所述的“包含”功能 看起来像 let myArray = ['Kevin', 'Bob', 'Stuart']; if( myArray.includes('Kevin')) console.log('Kevin is here');Run Code Online (Sandbox Code Playgroud) Mar*_*ato 9 有一个名为Locutus的项目,它在Javascript中实现了PHP函数,并...