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Assignment operators in Dart Programming
We make use of assignment operators whenever we want to assign values to a variable. There are times when we combine assignment operators with arithmetic operators and logical operators to build a shorthand version of both the assignment and arithmetic (or logical) expression. These shorthand versions are also known as compound statements.
In the table below, all the assignment operators that are present in dart are mentioned.
Consider the table shown below −
| Operator | Description | Expression |
|---|---|---|
| = | Assignment operator | a = b |
| += | Add and assign combined | a += b is equivalent to a = a + b |
| -= | Subtract and assign | a –= b is equivalent to a = a - b |
| *= | Multiply and assign | a *= b is equivalent to a = a * b |
| /= | Divide and assign | a /= b is equivalent to a = a / b |
| ~/= | Divide and assign and store Int value | a ~/= b is equivalent to a = a ~/ b |
| %= | Modulus and assign | a %= b is equivalent to a = a % b |
| <<= | Left shift and and assign | a <<= 3 is equivalent to a = a << 3 |
| >>= | Right shift and assign | a >>= 3 is equivalent to a = a >> 3 |
| &= | Bitwise AND assign | a &= 3 is equivalent to a = a & 3 |
| ^= | Bitwise exclusive OR and assign | a ^= 3 is equivalent to a = a ^ 3 |
| |= | Bitwise inclusive OR and assign | a |= 3 is equivalent to a = a | 3 |
Let's make use of all the above mentioned assignment operators in a dart program.
Example
Consider the example shown below −
void main(){
var x = 10;
print("x = 10 -> ${x}");
x += 15;
print("x += 15 -> ${x}");
x -= 10;
print("x -= 10 -> ${x}");
x *= 10;
print("x *= 10 -> ${x}");
x ~/= 5;
print("x /= 5 -> ${x}");
x %= 7;
print("x %= 7 -> ${x}");
x <<= 2;
print("x <<= 2 -> ${x}");
x >>= 3;
print("x >>= 3 -> ${x}");
x &= 2;
print("x &= 2 -> ${x}");
x ^= 5;
print("x ^= 5 -> ${x}");
x |= 10;
print("x |= 10 -> ${x}");
}Output
x = 10 -> 10 x += 15 -> 25 x -= 10 -> 15 x *= 10 -> 150 x /= 5 -> 30 x %= 7 -> 2 x <<= 2 -> 8 x >>= 3 -> 1 x &= 2 -> 0 x ^= 5 -> 5 x |= 10 -> 15
Published on 21-May-2021 12:14:43
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