Question

我试图执行这样的代码：

value = value.replace(/{{(.*)}}/g, this.dataService.relationTable["\"$1\""]);

我希望将变量捕获到围绕它的{{和}}字符串中。然后，我想使用该值来搜索名为this.dataService.relationTable的对象，并找到等于正则表达式捕获值的键字符串。

有谁知道我做错了什么？

示例relationTable：

{C5: 200000, C7: 0, C6: 0, C8: "Site-Built", C26: 25, …}
C5
:
200000
C6
:
0
C7
:
0
C8
:
"Site-Built"
C11
:
4.25
C12
:
360
C13
:
3
C14
:
1000
C15
:
0
C16
:
0
C17
:
5000
C20
:
80
C21
:
8
C22
:
1000
C23
:
8
C24
:
0
C25
:
0
C26
:
25
C29
:
2000
C30
:
275
C31
:
250
C32
:
875
F4
:
"{{C5}}"
F5
:
"{{C7}}"
F6
:
"{{I21}}"
F7
:
"{{F24}}"
F8
:
"{{C29}}"
F9
:
"{{F4}} + {{F5}} + {{F6}} + {{F7}} + {{F8}}"
F11
:
"{{F9}}"
F12
:
"{{C6}}"
F13
:
"{{F11}} + {{F12}}"
F15
:
"{{C5}}"
F16
:
"{{C7}}"
F17
:
"{{C6}}"
F18
:
"{{F15}} + {{F16}} + {{F17}}"
F20
:
"{{F27}}"
F21
:
"{{C30}}"
F22
:
"{{C31}}"
F23
:
"{{C32}}"
F24
:
"{{F20}} + {{F21}} + {{F22}} + {{F23}}"
F26
:
"{{I11}}"
F27
:
"{{F26}} * 9 / 400"
I4
:
"{{F18}}"
I5
:
"{{F24}}"
I6
:
"{{C29}}"
I7
:
"{{C17}}"
I8
:
"{{I35}}"
I9
:
"{{I26}}"
I10
:
"{{C14}} * -1"
I11
:
"{{I4}} + {{I5}} + {{I6}} + {{I7}} + {{I8}} + {{I9}} - {{I10}}"
I13
:
"{{I11}}"
I14
:
"{{C11}}"
I15
:
"{{C12}}"
I16
:
undefined
I18
:
"{{I35}}"
I19
:
"{{C15}}"
I20
:
"{{C17}}"
I21
:
"{{I18}} + {{I19}} + {{I20}}"
I23
:
"{{F13}}"
I24
:
"{{C14}} * -1"
I25
:
"{{C13}}"
I26
:
"({{I23}} + {{I24}}) * {{I25}}"
I28
:
"{{C20}} * {{C21}}"
I29
:
"{{C22}} * {{C23}}"
I30
:
"{{C24}} * {{C25}}"
I31
:
"{{C16}} * -1"
I32
:
"{{C11}} * {{C26}} / 365"
I33
:
"{{C20}} * 12"
I34
:
"{{C24}} * 12"
I35
:
"{{I28}} + {{I29}} + {{I30}} + {{I31}} + {{I32}} + {{I33}} + {{I34}}"

样本值：

{{I35}}

在这种情况下，结果应为{{I28}} + {{I29}} + {{I30}} + {{I31}} + {{I32}} + {{I33}} + {{I34 }}

Answer 1

使用函数替换：

value = value.replace(/{{(.*)}}/g, (match, p1) => this.dataService.relationTable[p1]);

此处，值p1将采用正则表达式中第一个捕获组(...)内匹配的值。

Answer 2

我认为这是一个X / Y问题。您可能只想要：var key =“I35”，value = relationTable [key]

＆＃13;

var relationTable = {  C5: 200000,  C6: 0,  C7: 0,  C8: "Site-Built",  C11: 4.25,  C12: 360,  C13: 3,  C14: 1000,  C15: 0,  C16: 0,  C17: 5000,  C20: 80,  C21: 8,  C22: 1000,  C23: 8,  C24: 0,  C25: 0,  C26: 25,  C29: 2000,  C30: 275,  C31: 250,  C32: 875,  F4: "{{C5}}",  F5: "{{C7}}",  F6: "{{I21}}",  F7: "{{F24}}",  F8: "{{C29}}",  F9: "{{F4}} + {{F5}} + {{F6}} + {{F7}} + {{F8}}",  F11: "{{F9}}",  F12: "{{C6}}",  F13: "{{F11}} + {{F12}}",  F15: "{{C5}}",  F16: "{{C7}}",  F17: "{{C6}}",  F18: "{{F15}} + {{F16}} + {{F17}}",  F20: "{{F27}}",  F21: "{{C30}}",  F22: "{{C31}}",  F23: "{{C32}}",  F24: "{{F20}} + {{F21}} + {{F22}} + {{F23}}",  F26: "{{I11}}",  F27: "{{F26}} * 9 / 400",  I4: "{{F18}}",  I5: "{{F24}}",  I6: "{{C29}}",  I7: "{{C17}}",  I8: "{{I35}}",  I9: "{{I26}}",  I10: "{{C14}} * -1",  I11: "{{I4}} + {{I5}} + {{I6}} + {{I7}} + {{I8}} + {{I9}} - {{I10}}",  I13: "{{I11}}",  I14: "{{C11}}",  I15: "{{C12}}",  I16: null,  I18: "{{I35}}",  I19: "{{C15}}",  I20: "{{C17}}",  I21: "{{I18}} + {{I19}} + {{I20}}",  I23: "{{F13}}",  I24: "{{C14}} * -1",  I25: "{{C13}}",  I26: "({{I23}} + {{I24}}) * {{I25}}",  I28: "{{C20}} * {{C21}}",  I29: "{{C22}} * {{C23}}",  I30: "{{C24}} * {{C25}}",  I31: "{{C16}} * -1",  I32: "{{C11}} * {{C26}} / 365",  I33: "{{C20}} * 12",  I34: "{{C24}} * 12",  I35: "{{I28}} + {{I29}} + {{I30}} + {{I31}} + {{I32}} + {{I33}} + {{I34}}"}

var key="I35", value=relationTable[key];
console.log(value);
// or

key="{{I35}}", value=relationTable[key.replace(/[\{\}]/g,"")];
console.log(value);

＆＃13;

用查找表中的字符串替换值

2 个答案: