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Scala中Array和List的区别说明_java_脚本之家
Drop the first i elements O(n-i) O(1) Insert an element at i O(n) O(i) Reverse O(n) O(n) Concatenate (length m,n) O(n+m) O(n) 所以,除非你需要快速随机访问或需要count batches of elements,否则,列表比数组更好。 Scala快排List和Array数组效率实测 代码 1 2 3 4 5 6 7 8 9 ...
www.jb51.net/article/2249...htm 2025-4-3
Java @Autowired注解底层原理详细分析_java_脚本之家
currElements.add(new AutowiredFieldElement(field, required)); } }); //和上面一样的逻辑,但是是通过反射处理类的method ReflectionUtils.doWithLocalMethods(targetClass, method -> { Method bridgedMethod = BridgeMethodResolver.findBridgedMethod(method); if (!BridgeMethodResolver.isVisibilityBridgeMethodPair...
www.jb51.net/article/2667...htm 2025-4-18
js清空表单数据的两种方式(遍历+reset)_javascript技巧_脚本之家
for (var i = 0; i < objId.elements.length; i++) { if (objId.elements[i].type == "text") { objId.elements[i].value = ""; } else if (objId.elements[i].type == "password") { objId.elements[i].value = ""; } else if (objId.elements[i].type == "radio") { objId.elem...
www.jb51.net/article/523...htm 2025-3-31
JavaScript保留关键字汇总_javascript技巧_脚本之家
document element elements embed embeds encodeURI encodeURIComponent escape event fileUpload focus form forms frame innerHeight innerWidth layer layers link location mimeTypes navigate navigator frames frameRate hidden history image images offscreenBuffering open opener option outerHeight outerWidth packages pageX...
www.jb51.net/article/756...htm 2025-4-15
Java集合之CopyOnWriteArrayList详解_java_脚本之家
if (elements.getClass() != Object[].class) elements = Arrays.copyOf(elements, elements.length, Object[].class); } setArray(elements); } 如果c 是CopyOnWriteArrayList类型,直接把它的数组赋值给当前list的数组,注意这里是浅拷贝,两个集合共用同一个数组。 如果c 不是CopyOnWriteArrayList类型,则进行拷贝把...
www.jb51.net/program/308308g...htm 2025-4-3