Run results for: if versus indexof

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

Browser: IE 11

Operating system: Windows 7

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
IF	30.7 Ops/sec
INDEXOF	24.6 Ops/sec

Script Preparation code:

x = undefined;
q1 =0;
q2 =0;

Tests:

IF
for( var i = 0; i< 100000 ; i++ ) { if ( x === undefined || x === "" || x === "FALSE" || x === "false" ) { q1=q1+1; } }
INDEXOF
for( var i = 0; i< 100000 ; i++ ) { if ( [undefined, "" , "FALSE", "false"].indexOf(x) !== -1 ) { q2=q2+1; } }