{
  "id": "@typed/fx#RefTuple.prependElement",
  "canonicalId": "@typed/fx/RefTuple#prependElement",
  "symbol": {
    "id": "@typed/fx#RefTuple.prependElement",
    "packageName": "@typed/fx",
    "moduleName": ".",
    "exportName": "RefTuple.prependElement",
    "kind": "constant",
    "signatures": [
      "export declare const prependElement: {\n    <E>(element: E): <T extends ReadonlyArray<unknown>, Err, R>(ref: RefTuple<T, Err, R>) => RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n    <T extends ReadonlyArray<unknown>, E, Err, R>(ref: RefTuple<T, Err, R>, element: E): RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n};"
    ],
    "summary": "Prepend an element to the beginning of the current state of a RefTuple.",
    "sections": {
      "Why": "Expresses prepend element as one ordered tuple transition; readers never observe the\nintermediate collection used to build the result.",
      "Ownership and lifetime": "The prepend element view retains no independent state. An Effect read samples the source once;\nFx observation follows later pushes and its observing Scope owns subscription cleanup."
    },
    "examples": [],
    "relations": [],
    "source": {
      "file": "packages/fx/src/RefSubject/RefTuple.ts",
      "line": 203
    },
    "since": "1.18.0",
    "category": "Derived queries"
  },
  "exposure": {
    "recordKind": "declaration",
    "id": "@typed/fx#RefTuple.prependElement",
    "packageName": "@typed/fx",
    "packageVersion": "2.0.0-beta.13",
    "moduleName": ".",
    "consumerSpecifier": "@typed/fx",
    "exportName": "RefTuple",
    "qualifiedName": "RefTuple.prependElement",
    "declarationKey": "declaration:0a3f3affc81a72f76d1dc138",
    "family": "variable",
    "signatures": [
      "export declare const prependElement: {\n    <E>(element: E): <T extends ReadonlyArray<unknown>, Err, R>(ref: RefTuple<T, Err, R>) => RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n    <T extends ReadonlyArray<unknown>, E, Err, R>(ref: RefTuple<T, Err, R>, element: E): RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n};"
    ],
    "sourceSpans": [
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 203,
          "column": 14
        },
        "end": {
          "line": 220,
          "column": 3
        }
      },
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 204,
          "column": 3
        },
        "end": {
          "line": 208,
          "column": 47
        }
      },
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 209,
          "column": 3
        },
        "end": {
          "line": 212,
          "column": 45
        }
      }
    ],
    "aliases": [
      "@typed/fx/RefTuple#prependElement"
    ],
    "isAlias": true,
    "parentId": "@typed/fx#RefTuple",
    "static": false,
    "importedFrom": "declaration:0a3f3affc81a72f76d1dc138"
  },
  "declaration": {
    "declarationKey": "declaration:0a3f3affc81a72f76d1dc138",
    "name": "prependElement",
    "family": "variable",
    "facets": [
      {
        "family": "variable",
        "syntaxKind": "VariableDeclaration",
        "signatures": [
          "export declare const prependElement: {\n    <E>(element: E): <T extends ReadonlyArray<unknown>, Err, R>(ref: RefTuple<T, Err, R>) => RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n    <T extends ReadonlyArray<unknown>, E, Err, R>(ref: RefTuple<T, Err, R>, element: E): RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n};"
        ],
        "typeParameters": [],
        "sourceSpans": [
          {
            "file": "packages/fx/src/RefSubject/RefTuple.ts",
            "start": {
              "line": 203,
              "column": 14
            },
            "end": {
              "line": 220,
              "column": 3
            }
          }
        ],
        "static": false,
        "readonly": false,
        "optional": false
      },
      {
        "family": "call-signature",
        "syntaxKind": "CallSignature",
        "signatures": [
          "<E>(element: E): <T extends ReadonlyArray<unknown>, Err, R>(ref: RefTuple<T, Err, R>) => RefSubject.Computed<[\n    E,\n    ...T\n], Err, R>;",
          "<T extends ReadonlyArray<unknown>, E, Err, R>(ref: RefTuple<T, Err, R>, element: E): RefSubject.Computed<[\n    E,\n    ...T\n], Err, R>;"
        ],
        "typeParameters": [
          "E",
          "T extends ReadonlyArray<unknown>",
          "Err",
          "R"
        ],
        "sourceSpans": [
          {
            "file": "packages/fx/src/RefSubject/RefTuple.ts",
            "start": {
              "line": 204,
              "column": 3
            },
            "end": {
              "line": 208,
              "column": 47
            }
          },
          {
            "file": "packages/fx/src/RefSubject/RefTuple.ts",
            "start": {
              "line": 209,
              "column": 3
            },
            "end": {
              "line": 212,
              "column": 45
            }
          }
        ],
        "static": false,
        "readonly": false,
        "optional": false
      }
    ],
    "signatures": [
      "export declare const prependElement: {\n    <E>(element: E): <T extends ReadonlyArray<unknown>, Err, R>(ref: RefTuple<T, Err, R>) => RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n    <T extends ReadonlyArray<unknown>, E, Err, R>(ref: RefTuple<T, Err, R>, element: E): RefSubject.Computed<[\n        E,\n        ...T\n    ], Err, R>;\n};"
    ],
    "typeParameters": [
      "E",
      "T extends ReadonlyArray<unknown>",
      "Err",
      "R"
    ],
    "summary": "Prepend an element to the beginning of the current state of a RefTuple.",
    "sections": {
      "Why": "Expresses prepend element as one ordered tuple transition; readers never observe the\nintermediate collection used to build the result.",
      "Ownership and lifetime": "The prepend element view retains no independent state. An Effect read samples the source once;\nFx observation follows later pushes and its observing Scope owns subscription cleanup."
    },
    "examples": [],
    "sourceSpans": [
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 203,
          "column": 14
        },
        "end": {
          "line": 220,
          "column": 3
        }
      },
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 204,
          "column": 3
        },
        "end": {
          "line": 208,
          "column": 47
        }
      },
      {
        "file": "packages/fx/src/RefSubject/RefTuple.ts",
        "start": {
          "line": 209,
          "column": 3
        },
        "end": {
          "line": 212,
          "column": 45
        }
      }
    ],
    "since": "1.18.0",
    "category": "Derived queries"
  }
}