catch do from let super typeof class else function new switch var JavaScript 还保留或限制了某些关键字的使用,这些关键字目前尚未被语言使用,但可能在未来版本中使用: 代码语言:javascript 复制 enum implements interface package private protected public 由于历史原因,在某些情况下不允许将arguments和eval用作标识...
The if statementThe else statementThe else if statementRandom linkSwitch statement Conditionals Explained JavaScript Loops For loopLooping an ArrayLooping through HTML headersWhile loopDo While loopBreak a loopBreak and continue a loopUse a for...in statement to loop through the elements of an objec...
6. switch 简化 我们可以将条件保存在键值对象中,并根据条件来调用它们。 7. 条件查找简化 如果我们要基于不同的类型调用不同的方法,可以使用多个 else if 语句或 switch,但有没有比这更好的简化技巧呢? // Longhandif(type==='test1'){test1();}elseif(type==='test2'){test2();}elseif(type==='t...
// bad switch (foo) { case 1: let x = 1; break; case 2: const y = 2; break; case 3: function f() { // ... } break; default: class C {} } // good switch (foo) { case 1: { let x = 1; break; } case 2: { const y = 2; break; } case 3: { function f()...
Its nodes are values of class DataFlow::Node, which has two subclasses ValueNode and SsaDefinitionNode. Nodes of the former kind wrap an expression or a statement that is considered to produce a value (specifically, a function or class declaration statement, or a TypeScript namespace or enum...
important;padding-top:10px;padding-left:10px"> <el-switch v-model="getCenPoint" active-text="开始" inactive-text="关闭"></el-switch> </el-form-item> </el-form> </disPlay> </template> <increasePop :centerDialogVisible.sync="tipsAlert" title="绘制数据" :ruleForm="ruleFormH" ...
You want your scripts to execute sections of code based on external values, such as Booleans, user entries in text boxes, or user choices fromselectelements. Solution Use theif,if/else, orswitchflow control construction to establish an execution path through a section of your scripts. When yo...
The SwitchInput class defines the desired user interface for a binary switch or toggle. This should be used when selecting between two options. This input is used in field elements that are set within a feature layer's or FeatureForm's formTemplate. This is displayed within the Editor w...
switch (x) { case weird ? true : {}/a/g: {}/a/g }The first {}/a/g is a division, while the second {}/a/g is an empty block followed by a regex. Both are preceded by a colon with a case on the same line, and it does not seem like you can distinguish between the ...
This simple script provides a single function, addTwoValues. dbgcmd // WinDbg JavaScript sample // Adds two functions function addTwoValues(a, b) { return a + b; } Use a text editor such as Notepad to create a text file namedFirstSampleFunction.js ...