在“if”语句中声明和分配的变量是否仅在该“if”块内或在整个函数内可见?IF语句中的javascript变量范围
我是否在下面的代码中执行此操作? (似乎工作,但多次声明“var结构”似乎很尴尬)任何更清洁的解决方案?
function actionPane(state) {
if(state === "ed") {
var structure = {
"element" : "div",
"attr" : {
"class" : "actionPane"
},
"contains" : [{
"element" : "a",
"attr" : {
"title" : "edit",
"href" : "#",
"class" : "edit"
},
"contains" : ""
}, {
"element" : "a",
"attr" : {
"title" : "delete",
"href" : "#",
"class" : "delete"
},
"contains" : ""
}]
}
} else {
var structure = {
"element" : "div",
"attr" : {
"class" : "actionPane"
},
"contains" : [{
"element" : "a",
"attr" : {
"title" : "save",
"href" : "#",
"class" : "save"
},
"contains" : ""
}, {
"element" : "a",
"attr" : {
"title" : "cancel",
"href" : "#",
"class" : "cancel"
},
"contains" : ""
}]
}
}
return structure;
}
请注意,您也可以这样做:'if(state ===“ed “){return {...}} else {return {...}}'而不是使用变量。 –