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Results for “if”

Small, practical examples. Search by task or narrow things down below.

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PostgresConstraints & defaults

Reject duplicate business identifiers

Postgres: A UNIQUE constraint protects a business key independently of the primary key.

Postgres✓ Tested
SQLiteConstraints & defaults

Reject duplicate business identifiers

SQLite: A UNIQUE constraint protects a business key independently of the primary key.

SQLite✓ Tested
AngularLists & control flow

Remove a list item by identifier

Remove a list item by identifier with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
AngularGetting Started

Render a conditional branch with @if

Render a conditional branch with @if with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
GitInspecting the working tree

Restrict a diff to one chosen path

Git: Use the double dash separator to distinguish a filename from revisions or options.

Git✓ Tested
SQLSelect & filter

Select specific columns

Read only the fields a result needs.

SELECT✓ Tested
Linux CommandsStreams & byte tools

Set a file to a specific byte length

Linux Commands: Use truncate to shorten a known scratch file without replacing its inode.

Linux Commands✓ Tested
ReactForms & validation

Show a field-specific validation message

Show a field-specific validation message with a small React component and explicit browser behavior.

React✓ Tested
CSSFlexbox alignment

Specify a flex item’s initial main size

CSS: Flex-basis establishes the starting main-axis size before growth or shrinkage.

CSS✓ Tested
AngularLifecycle & observable data

Tie a subscription’s lifetime to its component

Tie a subscription’s lifetime to its component with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
AngularLists & control flow

Track a selected record by its identifier

Track a selected record by its identifier with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
ReactLists & filtering

Track selection by a stable identifier

Track selection by a stable identifier with a small React component and explicit browser behavior.

React✓ Tested