Loops/Foreach: Difference between revisions
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Sometimes it is necessary to use an alternative to ".[]". For example, one might want to generate an index along with the array elements. In such cases, the "range(m;n)" generator, which performs a similar role to C's "for(i=m; i<n; i++)", can be used for array. Here is how range/2 would be used to perform the task for an array: |
Sometimes it is necessary to use an alternative to ".[]". For example, one might want to generate an index along with the array elements. In such cases, the "range(m;n)" generator, which performs a similar role to C's "for(i=m; i<n; i++)", can be used for array. Here is how range/2 would be used to perform the task for an array: |
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<lang jq>range(0; |
<lang jq>example | . as $a | range(0; length) | $a[.]</lang> |
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For JSON objects, the corresponding technique involves using <tt>keys</tt>, e.g. |
For JSON objects, the corresponding technique involves using <tt>keys</tt>, e.g. |
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<lang jq> |
<lang jq> |
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