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APIJSON/APIJSON-JavaScript/StringUtil.js at master · 0605/APIJSON · GitHub
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StringUtil.js
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/**获取string,为null则返回''
*
@param
s
*
@return
*/
function
getString
(
s
)
{
return
s
==
null
?
''
:
s
;
}
/**获取去掉前后空格后的string,为null则返回''
*
@param
s
*
@return
*/
function
getTrimmedString
(
s
)
{
return
this
.
getString
(
s
)
.
trim
(
)
;
}
/**获取去掉所有空格后的string,为null则返回''
*
@param
s
*
@return
*/
function
getNoBlankString
(
s
)
{
return
this
.
getString
(
s
)
.
replace
(
'\\s'
,
''
)
;
}
/**判断字符是否为空
*
@param
s
*
@param
trim
*
@return
*/
function
isEmpty
(
s
,
trim
)
{
if
(
s
==
null
)
{
return
true
;
}
if
(
trim
)
{
s
=
s
.
trim
(
)
;
}
if
(
s
==
''
)
{
return
true
;
}
return
false
;
}
/**添加后缀
*
@param
key
*
@param
suffix
*
@return
key + suffix，第一个字母小写
*/
function
addSuffix
(
key
,
suffix
)
{
key
=
this
.
getNoBlankString
(
key
)
;
if
(
key
==
''
)
{
return
this
.
firstCase
(
suffix
)
;
}
return
this
.
firstCase
(
key
)
+
this
.
firstCase
(
suffix
,
true
)
;
}
/**首字母大写或小写
*
@param
key
*
@param
upper
*
@return
*/
function
firstCase
(
key
,
upper
)
{
key
=
this
.
getString
(
key
)
;
if
(
key
==
''
)
{
return
''
;
}
const
first
=
key
.
substring
(
0
,
1
)
;
key
=
(
upper
?
first
.
toUpperCase
(
)
:
first
.
toLowerCase
(
)
)
+
key
.
substring
(
1
,
key
.
length
)
;
return
key
;
}
/**全部大写
*
@param
s
*
@param
trim
*
@return
*/
function
toUpperCase
(
s
,
trim
)
{
s
=
trim
?
this
.
getTrimmedString
(
s
)
:
this
.
getString
(
s
)
;
return
s
.
toUpperCase
(
)
;
}
/**全部小写
*
@param
s
*
@return
*/
function
toLowerCase
(
s
,
trim
)
{
s
=
trim
?
this
.
getTrimmedString
(
s
)
:
this
.
getString
(
s
)
;
return
s
.
toLowerCase
(
)
;
}
//校正（自动补全等）字符串>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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