Method install

www/js/_hyperscript.esm.js:9823–9850

(target, source, args, runtime2)

    this.displayName = "when ... changes";
  }
  install(target, source, args, runtime2) {
    var feature = this;
    queueMicrotask(function() {
      for (var i = 0; i < feature.exprs.length; i++) {
        (function(expr) {
          runtime2.reactivity.createEffect(
            function() {
              return expr.evaluate(
                runtime2.makeContext(target, feature, target, null)
              );
            },
            function(newValue) {
              var ctx = runtime2.makeContext(target, feature, target, null);
              ctx.result = newValue;
              ctx.meta.reject = function(err) {
                console.error(err.message ? err.message : err);
                runtime2.triggerEvent(target, "exception", { error: err });
              };
              ctx.meta.onHalt = function() {
              };
              feature.start.execute(ctx);
            },
            { element: target }
          );
        })(feature.exprs[i]);
      }
    });
  }
};

// src/parsetree/features/bind.js