example 1. if (conditions) {true -->do this} else {false --> do this} if((age>=14)&&(age<19)){// logical conditionstatus="Eligible.";// executed if condition is true}else{// else block is optionalstatus="Not eligible.";// executed if condition is false} example 2. multiple i...
JavaScript else if StatementWe can use the else if keyword to check for multiple conditions.The syntax of the else if statement is:// check for first condition if (condition1) { // if body } // check for second condition else if (condition2){ // else if body } // if no condition...
Complex case :: In the case of multiple conditions, we should use the parentheses according to the need of the program and we have to use 'Logical AND' or 'Logical OR' in that case also. Multi-stage Conditions [if...else if...else if... ...else](else-if.js) ...
A return in an else if block following an if block that contains a return can be separated into multiple if blocks. eslint: no-else-return // bad function foo() { if (x) { return x; } else { return y; } } // bad function cats() { if (x) { return x; } else if (y) ...
Most would consider the switch statement in this code to be more readable than the if-else statement. As it turns out, the switch statement is faster in most cases when compared to if-else, but significantly faster only when the number of conditions is large. The primary difference in perfo...
can have multiple random number generatorsand they won't stomp all over eachother's state.If ...
1001 } else if (condition2) { 1002 console.log(1); 1003 console.log(2); 1004 console.log(3); 1005 1006 return 4; 1007 } else { 1008 return 5; 1009 } 1010 1011 // output 1012 if (condition1) { 1013 const foo = 0x1, bar = 0x2; ...
Else if Statement Withifandelse, we can run blocks of code depending on whether a condition istrueorfalse. However, sometimes we might have multiple possible conditions and outputs, and need more than simply two options. One way to do this is with theelse ifstatement, which can evaluate mor...
2. If you need to preserve the original array, use spread (…) or slice to create a new array before prepending elements. 3. If you’re prepending to an empty array, using unshift is perfectly fine. However, some methods like spread ([…emptyArray, element]) might need extra checks to...
if(window.location.hostname==='example.com') {ineum('key','production monitoring key'); }elseif(window.location.hostname==='qa.example.com') {ineum('key','QA monitoring key'); }else{ineum('key','test monitoring key'); }