MongoDB request DSL • opensavvy.ktmongo.dsl.aggregation.operators • StringValueOperators • trimStart
trimStart¶
Removes whitespace characters, including null, or the specified characters from the beginning of a string.
By default, removes whitespace characters including the null character.
Example¶
class Document(
val text: String,
)
collection.aggregate()
.set {
Document::text set of(Document::text).trimStart()
}.toList()
External resources¶
Removes the specified characters from the beginning of a string.
Example¶
class Document(
val text: String,
)
// Trim both 'g' and 'e' characters from the beginning
collection.aggregate()
.set {
Document::text set of(Document::text).trimStart('g', 'e')
}.toList()
// Trim space, 'g', and 'e' characters from the beginning
collection.aggregate()
.set {
Document::text set of(Document::text).trimStart(' ', 'g', 'e')
}.toList()
External resources¶
Removes the specified characters from the beginning of a string.
The characters parameter is a single string that can contain multiple characters to be trimmed. Each character in the string will be removed from the beginning of the input string.
Example¶
class Document(
val text: String,
)
// Trim both 'g' and 'e' characters from the beginning
collection.aggregate()
.set {
Document::text set of(Document::text).trimStart(characters = of("ge"))
}.toList()
// Trim space, 'g', and 'e' characters from the beginning
collection.aggregate()
.set {
Document::text set of(Document::text).trimStart(characters = of(" ge"))
}.toList()