“concat”翻译为中文是“连接”。 应用场景: “concat”在计算机编程和数据处理中经常使用,特别是在需要将两个或多个字符串、数组或其他类型的数据连接起来形成一个新的数据项时。 造句例句: 英文:We can use the concat function to combine two arrays in JavaScript. 中文:我们可以使用JavaScri...
JavaScript Array concat()用法及代码示例在本教程中,我们将借助示例了解 JavaScript Array concat() 方法。 concat() 方法通过合并两个或多个值/数组来返回一个新数组。 示例 let primeNumbers = [2, 3, 5, 7] let evenNumbers = [2, 4, 6, 8] // join two arrays let joinedArrays = primeNumbers....
In JavaScript, the syntax for the concat() method is: array.concat(value1, value2, ... value_n); Parameters or Arguments value1, value2, ... value_n Optional. The values or arrays that will be concatenated witharray. Returns
/* Property/method value type: Array object JavaScript syntax: - myArray.concat(someValues, ...) The result of this method is a new array consisting of the original array, plus the concatenation. The values that are passed to the method are added to the end of the array. If arrays are...
以上3 中数组合并方法的性能测评基于第三方库https://github.com/ecofic/article-efficiently-merging-arrays-in-javascript,可以 clone 下来,运行调试: 这里,我们尝试从 3 个维度来进行测试:(分别用1、10、100、1000、100,000、100,000、1,000,000元素数组进行100次测试) ...
[ 'C', 'C++', 'Lua', 'JavaScript', 'Python', 'Java' ] Example 2: Concatenating nested arrays Theconcat()method returns the shallow copy of the concatenated elements in the following way: It copies object references to the new array. (For example: passing a nested array) So if the ...
The JavaScript concat() method works in following ways. 1. The concat() method creates new array concatenating the array on which it is called and passed elements or arrays as arguments. 2. The concat() method does not alter the array on which it is called and the arrays passed as argum...
❮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"]; ...
代码语言:javascript 复制 varnew_array=old_array.concat(value1[,value2[,...[,valueN]]]) 参数 value_N_Arrays and/or values to concatenate into a new array. See the description below for details. 返回值 新的Array实例。 描述 concat方法创建一个新的数组,它由被调用的对象中的元素组成,每个参数...
Implemented in JavaScript 1.2 Syntaxconcat(arrayname1, arrayname2, ..., arraynameN) Parameterarrayname1, arrayname2, ..., arraynameN : Arrays to be joined to an array.Example -1:In the following web document two arrays arrayname1 and arrayname2 with single element have joined by concat(...