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getConstraintType

info

This functionality is available in the PRO edition only.

Description​

Returns the constraint type applied to the task

getConstraintType: (task: Task) => string

Parameters​

  • task - (required) Task - a task object

Returns​

  • constraintType - (string) - constraint type as defined in constraint_types config

Example​

var constraintType = gantt.getConstraintType(task);
var types = gantt.config.constraint_types;

if (constraintType != types.ASAP && 
    constraintType != types.ALAP && task.constraint_date) {
    // this task probably a constraint date specified
}

Details​

The return value will match the constraint_type value of the task if it's not empty.

If the constraint_type is empty, the return value will depend on the current scheduling strategy - either "asap" or "alap" if scheduling from the project end is enabled.

All allowed constraint types are defined in the gantt.config.constraint_types config.