diff options
Diffstat (limited to 'files/ja/web/javascript/guide/operators/assignment_operators')
| -rw-r--r-- | files/ja/web/javascript/guide/operators/assignment_operators/index.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/files/ja/web/javascript/guide/operators/assignment_operators/index.html b/files/ja/web/javascript/guide/operators/assignment_operators/index.html new file mode 100644 index 0000000000..88a0b0beb7 --- /dev/null +++ b/files/ja/web/javascript/guide/operators/assignment_operators/index.html @@ -0,0 +1,61 @@ +--- +title: 代入演算子 +slug: Web/JavaScript/Guide/Operators/Assignment_Operators +--- +<h3 id=".E4.BB.A3.E5.85.A5.E6.BC.94.E7.AE.97.E5.AD.90" name=".E4.BB.A3.E5.85.A5.E6.BC.94.E7.AE.97.E5.AD.90">代入演算子</h3> +<p>代入演算子は、右のオペランドの値に基づいた値を左のオペランドに代入します。基本的な代入演算子はイコール (=) ですが、これは右のオペランドの値を左のオペランドに代入します。すなわち、x = y では y の値を x に代入します。</p> +<p>他の代入演算子は標準的な演算をするための短縮表記があります。次の表でそれを示します。</p> +<table class="fullwidth-table"> + <tbody> + <tr> + <th>短縮表記した演算子</th> + <th>意味</th> + </tr> + <tr> + <td>x += y</td> + <td>x = x + y</td> + </tr> + <tr> + <td>x -= y</td> + <td>x = x - y</td> + </tr> + <tr> + <td>x *= y</td> + <td>x = x * y</td> + </tr> + <tr> + <td>x /= y</td> + <td>x = x / y</td> + </tr> + <tr> + <td>x %= y</td> + <td>x = x % y</td> + </tr> + <tr> + <td>x <<= y</td> + <td>x = x << y</td> + </tr> + <tr> + <td>x >>= y</td> + <td>x = x >> y</td> + </tr> + <tr> + <td>x >>>= y</td> + <td>x = x >>> y</td> + </tr> + <tr> + <td>x &= y</td> + <td>x = x & y</td> + </tr> + <tr> + <td>x ^= y</td> + <td>x = x ^ y</td> + </tr> + <tr> + <td>x |= y</td> + <td>x = x | y</td> + </tr> + </tbody> +</table> +<p><small><strong>表 3.2：代入演算子</strong></small></p> +<p>{{ PreviousNext("JavaScript/Guide/Operators", "JavaScript/Guide/Operators/Comparison_Operators") }}</p> |