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panyongping
uni-pdtravel
Commits
4bd10ec2
Commit
4bd10ec2
authored
Aug 15, 2022
by
潘永坪
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公共方法增加
parent
745d7900
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1
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main.js
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main.js
View file @
4bd10ec2
...
...
@@ -16,4 +16,26 @@ const app = new Vue({
...
App
})
app
.
$mount
()
//保留小数方法,第一个参数是需要保留的数字,第二个参数是需要保留几位小数
function
toFixed
(
number
,
m
)
{
if
(
typeof
number
!==
'number'
)
{
throw
new
Error
(
"number不是数字"
);
}
let
result
=
Math
.
round
(
Math
.
pow
(
10
,
m
)
*
number
)
/
Math
.
pow
(
10
,
m
);
result
=
String
(
result
);
if
(
result
.
indexOf
(
"."
)
==
-
1
)
{
if
(
m
!=
0
){
result
+=
"."
;
result
+=
new
Array
(
m
+
1
).
join
(
'0'
);
}
}
else
{
let
arr
=
result
.
split
(
'.'
);
if
(
arr
[
1
].
length
<
m
)
{
arr
[
1
]
+=
new
Array
(
m
-
arr
[
1
].
length
+
1
).
join
(
'0'
)
}
result
=
arr
.
join
(
'.'
)
}
return
parseFloat
(
result
)
}
Vue
.
prototype
.
$toFixed
=
toFixed
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