ColumnLike
Defined in: js-api/src/u2core/df-bindings.ts:11
Deliberately structural, not DG.Column/DG.DataFrame: every real frame satisfies these,
while the headless suite feeds plain fakes — a Dart-handle class could never type them.
Properties
| Property | Type | Defined in |
|---|---|---|
name | string | js-api/src/u2core/df-bindings.ts:12 |
semType? | string | null | js-api/src/u2core/df-bindings.ts:14 |
type | string | js-api/src/u2core/df-bindings.ts:13 |
Methods
isNone()?
optionalisNone(row):boolean
Defined in: js-api/src/u2core/df-bindings.ts:16
Whether the cell holds no value — get answers the column type's null sentinel for it.
Parameters
| Parameter | Type |
|---|---|
row | number |
Returns
boolean