Template:Iszero/doc

{{iszero}} returns the passed value if it evaluates as non-zero. If it is zero, by default the template returns nothing, or it can return any other value you specify. Blank inputs are treated as zeros by default, but that can be overridden.

Tip:	Non-numeric text generally will evaluate as non-zero, so you may want to pass the input value through {{isnumeric}} first (see examples 12 and 14) and treat non-numeric text as a blank.

Usage

Recognizes the following parameters

1. The value to check; required
2. blank= — To have blank values not be treated as zero, set this to any non-zero value you want returned; optional
3. whenzero= — Set to the value you want returned if the input value evaluates to zero; optional (defaults to blank)
4. whenblank= — Set to the value you want returned if the input value is blank; optional (defaults to blank)

Examples

1. {{iszero}} → Blank
2. {{iszero|0}} → Zero
3. {{iszero|3}} → Default
4. {{iszero|0|whenzero=Zero|whenblank=Blank}} → Zero
5. {{iszero|whenzero=Zero|whenblank=Blank}} → Blank
6. {{iszero||whenzero=Zero|whenblank=Blank}} → Blank
7. {{iszero|blank=1|whenzero=Zero|whenblank=Blank}} → Blank
8. {{iszero||blank=1|whenzero=Zero|whenblank=Blank}} → Blank
9. {{iszero|0|blank=1|whenzero=Zero|whenblank=Blank}} → Zero
10. {{iszero|3|blank=1|whenzero=Zero|whenblank=Blank}} → Default
11. {{iszero|Some text|blank=1|whenzero=Zero|whenblank=Blank}} → Default
12. {{iszero|{{isnumeric|Some text}}|blank=1|whenzero=Zero|whenblank=Blank}} → Blank
13. {{iszero|Some text|blank=0|whenzero=Zero|whenblank=Blank}} → Default
14. {{iszero|{{isnumeric|Some text}}|blank=0|whenzero=Zero|whenblank=Blank}} → Blank