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Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html')
| -rw-r--r-- | files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html b/files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html index b8f1c4d53c..296dcf5bc0 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/isfinite/index.html @@ -33,15 +33,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/isFinite <h2 id="Examples" name="Examples" style="margin-bottom: 20px; line-height: 30px;">示例</h2> -<pre class="brush: js language-js" style="padding: 1em 0px 1em 30px; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; direction: ltr; white-space: normal; text-shadow: none; background-color: rgba(234, 239, 242, 0.247059);"><code class="language-js" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; direction: ltr; white-space: pre; color: inherit; text-shadow: none;"><span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="number token" style="color: #990055;">Infinity</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span> <span class="comment token" style="color: #708090; display: inherit;"> // false -</span><span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="number token" style="color: #990055;">NaN</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span> <span class="comment token" style="color: #708090; display: inherit;"> // false -</span><span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="operator token" style="background: rgba(255, 255, 255, 0.498039); color: #a67f59;">-</span><span class="number token" style="color: #990055;">Infinity</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span><span class="comment token" style="color: #708090; display: inherit;"> // false -</span> -<span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="number token" style="color: #990055;">0</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span> <span class="comment token" style="color: #708090; display: inherit;"> // true -</span><span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="number token" style="color: #990055;">2e64</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span> <span class="comment token" style="color: #708090; display: inherit;"> // true, 在更强壮的Number.isFinite(null)中将会得到false -</span> - -<span class="function token">isFinite<span class="punctuation token" style="color: #999999;">(</span></span><span class="string token" style="color: #669900;">"0"</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span> <span class="comment token" style="color: #708090; display: inherit;"> // true, 在更强壮的Number.isFinite('0')中将会得到false</span></code></pre> +<pre class="brush: js language-js" style="padding: 1em 0px 1em 30px; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; direction: ltr; white-space: normal; text-shadow: none; background-color: rgba(234, 239, 242, 0.247059);"><code class="language-js" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; direction: ltr; white-space: pre; color: inherit; text-shadow: none;">isFinite(Infinity); // false +isFinite(NaN); // false +isFinite(-Infinity); // false + +isFinite(0); // true +isFinite(2e64); // true, 在更强壮的Number.isFinite(null)中将会得到false + + +isFinite("0"); // true, 在更强壮的Number.isFinite('0')中将会得到false</code></pre> <div class="line-number" style="margin-top: 1em; position: absolute; left: 0px; right: 0px; line-height: inherit; top: 0px; background: 0px 0px;"> </div> |