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lines changed Original file line number Diff line number Diff line change 1818 */
1919const isTriangular = ( number ) => {
2020 for ( let i = 0 ; i <= number ; i ++ ) {
21- if ( ( i * ( i + 1 ) ) / 2 == number ) {
21+ if ( ( i * ( i + 1 ) ) / 2 === number ) {
2222 return true
2323 } else if ( ( i * ( i + 1 ) ) / 2 > number ) {
2424 return false
@@ -34,7 +34,7 @@ const isTriangular = (number) => {
3434 */
3535const isTetrahedral = ( number ) => {
3636 for ( let i = 1 ; i <= number ; i ++ ) {
37- if ( ( i * ( i + 1 ) * ( i + 2 ) ) / 6 == number ) {
37+ if ( ( i * ( i + 1 ) * ( i + 2 ) ) / 6 === number ) {
3838 return true
3939 } else if ( ( i * ( i + 1 ) * ( i + 2 ) ) / 6 > number ) {
4040 return false
@@ -49,7 +49,7 @@ const isTetrahedral = (number) => {
4949 */
5050const isPentatope = ( number ) => {
5151 for ( let i = 1 ; i <= number ; i ++ ) {
52- if ( ( i * ( i + 1 ) * ( i + 2 ) * ( i + 3 ) ) / 24 == number ) {
52+ if ( ( i * ( i + 1 ) * ( i + 2 ) * ( i + 3 ) ) / 24 === number ) {
5353 return true
5454 } else if ( ( i * ( i + 1 ) * ( i + 2 ) * ( i + 3 ) ) / 24 > number ) {
5555 return false
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