Page 131 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

<= less than or equal to
? ternary operator
Note
Comparison operators are fully described in the JS Comparisons chapter.

JavaScript String Comparison
All the comparison operators above can also be used on strings:
Example
let text1 = “A”;

let text2 = “B”;
let result = text1 < text2;
Note that strings are compared alphabetically:
Example
let text1 = “20”;

let text2 = “5”;
let result = text1 < text2;
JavaScript String Addition
The + can also be used to add (concatenate) strings:
Example

let text1 = “John”;
let text2 = “Doe”;
let text3 = text1 + “ “ + text2;
The += assignment operator can also be used to add (concatenate) strings:
Example

let text1 = “What a very “;
text1 += “nice day”;
The result of text1 will be:
What a very nice day

Note
When used on strings, the + operator is called the concatenation operator.
Adding Strings and Numbers
Adding two numbers, will return the sum, but adding a number and a string will return a string:
Example
let x = 5 + 5;

let y = “5” + 5;
let z = “Hello” + 5;
The result of x, y, and z will be:
10

55
Hello5

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CITS : IT&ITES - Computer Software Application - Lesson 37 - 46