what is a placeholder
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a significant zero in the decimal representation of a number.
a symbol or piece of text used in a mathematical expression or in an instruction in a computer program to denote a missing quantity or operator.
2.
an element of a sentence that is required by syntactic constraints but carries little or no semantic information, for example the word it as a subject in it is a pity that she left, where the true subject is that she
a symbol or piece of text used in a mathematical expression or in an instruction in a computer program to denote a missing quantity or operator.
2.
an element of a sentence that is required by syntactic constraints but carries little or no semantic information, for example the word it as a subject in it is a pity that she left, where the true subject is that she
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in computer programming , a placeholder is a character ,word or string of character that may be used to take up space until such a time that the space is needed.
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