cwl-use-expressions

You can use JavaScript expressions in CWL workflows to dynamically transform input parameters by leveraging the InlineJavascriptRequirement, which enables computed values and conditional logic directly within your CWL package definitions.

Yes, you can implement conditional logic in Common Workflow Language by applying CWL expressions and JavaScript, allowing you to introduce decision-making and dynamic behavior within your workflow processes.

The best way to dynamically generate output file names in CWL is by using JavaScript expressions to compute values, allowing you to derive output names directly from input file names or other input parameters.

Yes, cwltool supports InlineJavascriptRequirement, which is required to execute CWL v1.0+ packages that utilize JavaScript and CWL expressions for computing values and transforming parameters dynamically.

You need InlineJavascriptRequirement because it is the specific CWL v1.0+ standard extension that enables the runtime evaluation of JavaScript expressions for parameter transformation and conditional logic within your workflows.

Using JavaScript expressions in CWL is limited to parameter transformation, conditional logic, and computed values within the process definition, and requires CWL v1.0+ with InlineJavascriptRequirement support to function properly.