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evaluate

evaluate [expression]

Evaluate a JavaScript expression and return results.

arguments:​

expression​

A javascript expression. (type: string)

flags:​

--appendStage​

Used to append the results from a previous stage to the current stage. (provide a label, stage index, or boolean true to append the previous results)

--args​

array of JSON encoded values to pass to expression as input

--cache​

A boolean value of true/false that determines whether or not to use the cache. Generally most commands will default to true.

--checkpoint​

Format: "{CHECKPOINT NAME}:{COLUMN}" Used to store the value of the provided column (in the first row of results) in the provided name for use as a checkpoint in scheduled queries or other stages. Can be accessed using $CHECKPOINTS.{CHECKPOINT NAME}$

--enrich​

Enriches each result row with the previous row. The previous columns will be appended with a _previous.

--faker​

inject faker js library in last object argument passed to expression (example "(data, { faker })=>faker)

--filter​

A filter to run on the command results before completing the command. If not provided, no filter is run on the results.

--fresh​

Starts the stage as if it was a fresh query, so will not use any previous result.

--guid​

Adds a populated random guid column.

--jquery​

inject jquery library in last object argument passed to expression (example "(data, { $ })=>$('a').html()

--labelStage​

Used to label a stage with a user provided label.

--lodash​

inject lodash library in last object argument passed to expression (example "(data, { })=>)

--mathjs​

inject mathjs library in last object argument passed to expression (example "(data, { mathjs })=>mathjs)

--maxConcurrent​

Override for the system max concurrent workers for a stage.

--randomizeHash​

Randomizes the stage hash, even if args and flags are the same.

--stats​

Controls if a stats calculation is run on a stage after it completes.

--table​

A comma separated list of columns to include in the command results. If not provided, all columns will be included.

--while​

Will rerun the stage until the provided expression is valid for the first line of results.

support​

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