6. 字符串转数组:巧用 Array.from() 和扩展运算符 conststr="🌟⭐️✨";console.log([...str]); // ['🌟','⭐️','✨']console.log(Array.from(str)); // ['🌟','⭐️','✨'] 特别适合处理 emoji 等...
publicstaticvoidmain(String[] args) { // Join all Strings in the Array into a Single String, // separated by $#$ System.out.println(StringUtils.join( newString[] {"AB","CD","EF"},"$#$")); } } 1-2、字符串=>字符串数组:String: split(String separator) 例: publicSplitDemo() {...
1-2、字符串=>字符串数组:String: split(String separator) 例: publicSplitDemo() { String s ="AB$#$CD$#$EF"; // 在每个空格字符处进行分解。 String[] ss = s.split("$#$"); } 1. 2. 3. 4. 5. 2、JavaScript 2-1、字符串数组=>字符串:Array: join(String separator) 例: <mce:scr...
// The split function creates a new array containing each value separated by a space stringArray = concatString.split(" "); for (var i=0; i<stringArray.length;i++) { alert(stringArray[i]; } alert(newString.toUpperCase()); alert(newString.toLowerCase()); } 下面是执行上面的代码得到...
// Define a function named string_to_array that takes a string as inputstring_to_array=function(str){// Trim the whitespace from the beginning and end of the string, then split the string into an array using whitespace as the separatorreturnstr.trim().split(" ");};// Call the string...
// convert the string to an arrayletresult4 = text1.split(); console.log(result4);// [ 'hello' ] // slice the stringletresult5= text1.slice(1,3); console.log(result5);// el Run Code Output hello world HELLO JavaScript
String.prototype.splitWithStringSplitOptions = function (splitBy, removeItemString) { if (this == "") { return new Array(); } var items = this.split(splitBy); for (var i = 0; i < items.length; i++) { if (items[i] == removeItemString) { items.splice(i, 1); i--;...
Given an arraynumswhich consists of non-negative integers and an integerm, you can split the array intomnon-empty continuous subarrays. Write an algorithm to minimize the largest sum among thesemsubarrays. Example 1: Input: nums = [7,2,5,10,8], m = 2 ...
arrayObj.splice(insertPos,0,[item1[,item2[,...[,itemN]]]);//将一个或多个新元素插入到数组的指定位置,插入位置的元素自动后移,返回""。第二个参数不为0(要删除的项数)时则可以实现替换的效果。 arr[array.length]=[]//使用length属性在数组末尾添加新项 数组元素的删除 arrayObj.pop();//移除...
substr(start,length) split() 数组操作 push() pop() unshift() shift() indexOf() lastIndexOf() join() concat() reserve() slice() splice() sort() map() filter() forEach() 例 constructor属性 prototype 属性 JavaScript声明变量 ① var ...