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Updated on 2025-09-07 GMT+08:00

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Common Operations

str_strip

Deletes specified characters from a string.

Format
```
str_strip(value, chars)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	Original string to be modified.
chars	Any (automatically converted to string)	No	Character set to be deleted at the beginning and end of a character string. The default value is \t\r\n.

Returned result
Modified string.

Function example

Example 1: Deletes spaces.

Test data
```
{
  "source":"      lts"
}
```

Processing rule

e_set("str_strip", str_strip(v("source")))

Processing result
```
source:      lts 
str_strip: lts
```

Example 2: Deletes # characters at the beginning and end of a string.
- Test data
```
{
"source": "##lts#"
}
```
- Processing rule
```
e_set("str_strip", str_strip(v("source"), "#"))
```
- Processing result
```
"source": "##lts#"
str_strip: lts
```

str_lstrip

Deletes specified characters at the beginning of a string.

Format
```
str_lstrip(value, chars)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	Original string to be modified.
chars	Any (automatically converted to string)	No	Character set to be deleted at the beginning of a character string. The default value is a space.

Returned result
Modified string.
Function example
- Test data: none
- Processing rule
```
e_set("str_strip", str_lstrip("**123**", "*"))
```
- Processing result
```
str_strip: 123**
```

str_rstrip

Deletes specified characters at the end of a string.

Format
```
str_rstrip(value, chars)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	Original string to be modified.
chars	Any (automatically converted to string)	No	Character set to be deleted at the end of a character string. The default value is a space.

Returned result
Modified string.
Function example
- Test data: none
- Processing rule
```
e_set("str_strip", str_rstrip("**123**", "*"))
```
- Processing result
```
str_strip: 123**
```

str_lower

Converts all uppercase characters in a string to lowercase characters.

Format
```
str_lower(value)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	String to be converted.

Returned result
String after conversion.

Function example

Test data
```
{
 "name": "LTs"
}
```

Processing rule

e_set("str_lower", str_lower(v("name")))

Processing result
```
name: LTs 
str_lower: lts
```

str_upper

Converts all lowercase characters in a string to uppercase characters.

Format
```
str_upper(value)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	String to be converted.

Returned result
String after conversion.

Function example

Test data
```
{
 "name": "LTs"
}
```

Processing rule

e_set("str_upper", str_upper(v("name")))

Processing result
```
name: LTs 
str_upper: LTS
```

str_title

Converts the first letter of each word in a string to uppercase and the other letters to lowercase.

Format
```
str_title(value)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	String to be converted.

Returned result
String after conversion.

Function example

Test data
```
{
  "name":  "for example"
}
```

Processing rule

e_set("str_title", str_title(v("name")))

Processing result

name:for example
example str_title: For Exampl

str_capitalize

Converts the first letter of a string to uppercase and the other letters to lowercase.

Format
```
str_capitalize(value)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	String to be converted.

Returned result
String after conversion.

Function example

Test data
```
{
  "value": "welcome to xian"
}
```

Processing rule

e_set("str_capitalize", str_capitalize(v("value")))

Processing result

value: welcome to xian
str_capitalize: Welcome to xian

str_swapcase

Converts the uppercase and lowercase letters of a string.

Format
```
str_swapcase(value)
```

Parameter description

Parameter	Type	Mandatory	Description
value	Any (automatically converted to string)	Yes	String to be converted.

Returned result
String after conversion.

Function example

Test data
```
{
 "name": "this is lts"
}
```

Processing rule

e_set("str_swapcase", str_swapcase(v("name")))

Processing result

name: this is lts 
str_swapcase: THIS IS LTS

Parent topic: String Functions

Previous topic: Multiple Character Strings, Sorting, Inversion, and Replacement

Next topic: Search, Split, and Format

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