简介
在本实验中,我们将探索如何使用 JavaScript 检查目标值是否存在于 JSON 对象中。我们将使用 hasKey()
函数,该函数允许我们依次检查对象中的键,以确定目标值是否存在。本实验将让你更好地理解如何在 JavaScript 中处理 JSON 对象。
Skills Graph
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flowchart RL
javascript(("`JavaScript`")) -.-> javascript/BasicConceptsGroup(["`Basic Concepts`"])
javascript(("`JavaScript`")) -.-> javascript/AdvancedConceptsGroup(["`Advanced Concepts`"])
javascript/BasicConceptsGroup -.-> javascript/variables("`Variables`")
javascript/BasicConceptsGroup -.-> javascript/data_types("`Data Types`")
javascript/BasicConceptsGroup -.-> javascript/arith_ops("`Arithmetic Operators`")
javascript/BasicConceptsGroup -.-> javascript/comp_ops("`Comparison Operators`")
javascript/BasicConceptsGroup -.-> javascript/cond_stmts("`Conditional Statements`")
javascript/BasicConceptsGroup -.-> javascript/array_methods("`Array Methods`")
javascript/AdvancedConceptsGroup -.-> javascript/destr_assign("`Destructuring Assignment`")
subgraph Lab Skills
javascript/variables -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/data_types -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/arith_ops -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/comp_ops -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/cond_stmts -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/array_methods -.-> lab-28520{{"`检查对象是否有键`"}}
javascript/destr_assign -.-> lab-28520{{"`检查对象是否有键`"}}
end