本文整理汇总了TypeScript中models/sources/columnar_data_source.ColumnarDataSource.get_column方法的典型用法代码示例。如果您正苦于以下问题：TypeScript ColumnarDataSource.get_column方法的具体用法？TypeScript ColumnarDataSource.get_column怎么用？TypeScript ColumnarDataSource.get_column使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类models/sources/columnar_data_source.ColumnarDataSource的用法示例。
在下文中一共展示了ColumnarDataSource.get_column方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: get_value
export function get_value(name: string, data_source: ColumnarDataSource, i: Index, special_vars: Vars) {
if (name[0] == "$") {
if (name.substring(1) in special_vars)
return special_vars[name.substring(1)]
else
throw new Error(`Unknown special variable '${name}'`)
}
const column = data_source.get_column(name)
// missing column
if (column == null)
return null
// typical (non-image) index
if (isNumber(i))
return column[i]
// image index
const data = column[i.index]
if (isTypedArray(data) || isArray(data)) {
// inspect array of arrays
if (isArray(data[0])) {
const row: any = data[i.dim2]
return row[i.dim1]
} else
return data[i.flat_index] // inspect flat array
} else
return data // inspect per-image scalar data
}示例2: if
str = str.replace(/(^|[^@])@(?:(\$?\w+)|{([^{}]+)})(?:{([^{}]+)})?/g, (_match, prefix, name, long_name, format) => {
name = long_name != null ? long_name : name
let value: any
if (name[0] == "$")
value = special_vars[name.substring(1)]
else {
const column = data_source.get_column(name)
if (column != null)
value = column[i]
}
let replacement = null
if (value == null)
replacement = "???"
else {
// 'safe' format, just return the value as is
if (format == 'safe')
return `${prefix}${value}`
else if (format != null) {
// see if the field has an entry in the formatters dict
if (formatters != null && name in formatters) {
const formatter = formatters[name]
switch (formatter) {
case "numeral":
replacement = Numbro.format(value, format)
break
case "datetime":
replacement = tz(value, format)
break
case "printf":
replacement = sprintf(format, value)
break
default:
throw new Error(`Unknown tooltip field formatter type '${formatter}'`)
}
// if not assume the format string is Numbro
} else
replacement = Numbro.format(value, format)
// no format supplied, just use a basic default numeric format
} else
replacement = _format_number(value)
}
return `${prefix}${escape(replacement)}`
})