JUMP TODocumentationGetting StartedFormat providersFunctionsaddFormatProvidercompareconcatformatformatArrayisEmptyisEmptyOrWhitespaceisNullOrEmptyisNullOrUndefinedisNullOrWhitespaceisWhitespacejoinsimilarityStringBuilderappendappendFormatappendFormatArrayappendLineclearequalsexecinsertinsertFormatinsertFormatArraylengthnewLineprependprependFormatprependFormatArrayprependLineremovereplacetesttoCharArraytoStringPowered by joinJoins items to one string.JavaScript// "11 + 22 + 33" StringFormat.join(" + ", [11, 22, 33]);