Hold

Disponible

Prevents its argument from being evaluated.

Formas

Hold[expr]

Ejemplos verificadosHold[1 + 2] → Hold[1 + 2]Hold[1 + 2][[1]] → 3 First[Hold[1 + 2, 3 + 4]] → 3 Rest[Hold[1 + 2, 3 + 4]] → Hold[3 + 4]

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Usada en

Substitute values of variables in functions that hold their arguments - 5 pasos

Temas

Evaluation Control - Evaluation Control for Complete Expressions
Expressions - Controlling Expression Evaluation »

Relacionadas

HoldForm HoldPattern HoldComplete HoldCompleteForm ReleaseHold Unevaluated HoldAll HoldAllComplete HoldFirst HoldRest Inactivate Defer

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