function find(arr) { var tmp = {} arr.forEach(num => tmp[num] = true) return arr.indexOf(Number(Object.keys(tmp)[1]))} js递归遍历多维数组,根据指定key删除对应的项,如何实现? let uniqueByUUID = (data, uuid) => { data.forEach((item, index) => { if (item._uuid === uuid)...
console.log(Object.getOwnPropertyNames(foo));//[ 'name', 'age', 'address' ]console.log(Object.getOwnPropertySymbols(foo));//[ Symbol(mySymbol), Symbol(mySymbol22222) ]console.log(Object.getOwnPropertyDescriptors(foo));//name: {//enumerable: true,。。。//},//age: { value: 18, writab...
("two","cn"); 4 map.put("three","love"); 第一种:取值遍历 1 for(String key:map.keySet()){ 2 System.out.println...("key="+key+"and value=" +map.get(key)); 3 ...
Concise output colored by response status for development use. The:statustoken will be colored green for success codes, red for server error codes, yellow for client error codes, cyan for redirection codes, and uncolored for information codes. 为开发者使用的彩色输出状态,如果成功则状态标记为绿色,...
searchvalue。开始检索的位置在字符串的 fromindex 处或字符串的开头(没 有指定 fromindex 时)。如果找到一个 searchvalue,则返回 searchvalue 的第一次出现的位置。stringObject 中的字符位置是从0 开始的。 varstr= "aaa456ac"; console.log(arr.indexOf('b'));//-1 , 字符b第一次出现的位置,没有,返回...
dependabot/npm_and_yarn/website/estree-util-value-to-estree-3.3.3 dependabot/npm_and_yarn/website/image-size-1.2.1 bump-deps Madoshakalaka-patch-1 tokise dependabot/github_actions/master/actions/github-script-7 automatically-cast-primitives ...
# $NVM_DIR/default-packages rimraf object-inspect@1.0.2 stevemao/left-padio.jsIf you want to install io.js:nvm install iojsIf you want to install a new version of io.js and migrate npm packages from a previous version:nvm install --reinstall-packages-from=iojs iojs...
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This object is acopyof all the characteristics described by the class. You likely wouldnât expect to walk into a building and find, framed and hanging on the wall, a copy of the blueprints used to plan the building, though the blueprints are probably on file with a public recor...
or .attrib in that it provides an alternative syntax for registering and compiling multiple templates in a single call. Instead of passing two parameters (name and templateString), you can pass just one parameter consisting of a mapping object with key/value pairs for each template...