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How to tell if a JavaScript function is defined
How do you tell if a function in JavaScript is defined?
21 Answers
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preventDefault() on an tag
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Set the href attribute as href="javascript:;"
<ul class="product-info">
<li>
<a href="javascript:;">YOU CLICK THIS TO SHOW/HIDE</a>
<div class="toggle">
<p>CONTENT TO SHOW/HIDE</p>
</div>
</...
Check time difference in Javascript
How would you check time difference from two text-boxes in Javascript?
17 Answers
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Why does !{}[true] evaluate to true in JavaScript?
...anguages, with !undefined being equal to undefined. That's not the case in Javascript, though.
– Frédéric Hamidi
Oct 31 '13 at 14:28
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javascript check for not null
...t (fyi Ujwal, !!val should technically work in C or C++ also) see here for javascript 'truthiness' values: janosch.woschitz.org/javascript-equality-comparison
– Will Buck
Mar 21 '13 at 18:00
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What's the best way to break from nested loops in JavaScript?
What's the best way to break from nested loops in Javascript?
15 Answers
15
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Are there constants in JavaScript?
Is there a way to use constants in JavaScript ?
33 Answers
33
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“elseif” syntax in JavaScript
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JavaScript's elseif is in the format "else if", e.g.:
if (condition) {
} else if (other_condition) {
} else {
}
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JavaScript string newline character?
Is \n the universal newline character sequence in Javascript for all platforms? If not, how do I determine the character for the current environment?
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JavaScript REST client Library [closed]
Is there a JavaScript library which allow me to perform all the REST operation like ( GET , POST , PUT and DELETE over HTTP or HTTPS )?
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