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    snippets

    0.0.6 • Public • Published

    JavaScript Snippet Collection

    Description

    Small collection of useful small snippets for JavaScript and Node.js. Designed to be lightweight, independent and undisruptive as much as possible.

    Features

    • is -- Check variable types
    • foreach -- For each element in array or object or the element itself
    • split -- Split variable into smaller chunks by regexp
    • join -- Join array or object as a string with multiple seperators
    • pass -- Pass vector values to a callback as arguments

    Installation for Node.js

    Simplest way to install is to use npm, just simply npm install snippets.

    License

    MIT-style license, see INSTALL.txt.

    Initializing

    Every feature is a property of snippets:

    var foreach = require('snippets').foreach;
    var split = require('snippets').split;
    var pass = require('snippets').pass;
    

    See examples/ for full examples.

    Is

    var is = require('snippets').is;
    var a = [1,2,3,4,5];
    if(is.array(a)) console.log("a is array");
    else if(is.object(a)) console.log("a is object");
    else console.log("a is not array nor object");
    

    Foreach

    Write each array element to console:

    var a = [1,2,3,4,5];
    foreach(a).each(function(v) { console.log(v); });
    

    Write each object key=value pair to console:

    a = {'foo':1,'bar':2};
    foreach(a).each(function(v, k) { console.log(k+"="+v); });
    

    Write single value to console:

    a = 'foobar';
    foreach(a).each(function(v) { console.log(v); });
    

    Split

    Splits string into smaller chunks using regexp:

    var vector = split(/: */, "One: Two:  Three:   End", 2);
    

    Resulting vector will be:

    ["One", "Two:  Three:   End"]
    

    Please note: Standard JavaScript split does NOT append the rest of the string in the last element.

    Join

    Joins an array into a string with multiple separators:

    var str = join(["a","b","c"], [":","."]);
    

    Resulting str will be "a:b.c".

    Default separator is ",".

    To change the default, use:

    var str = join(["a","b","c"], [":"], ".");
    

    Pass

    Passes the values from array into the callback as arguments:

    pass(["a", "b"]).on(function(key, value) { console.log(key+"="+value); });
    

    To parse a key-value line, we can use pass with split:

    pass(split(/ *= */, "a = b", 2)).on(function(key,value) { console.log(key+"="+value); });
    

    Trimmers

    To remove white spaces:

    a = ltrim('  Hello World '); // a = 'Hello World '
    a = rtrim('  Hello World '); // a = '  Hello World'
    a = trim('  Hello World ');  // a = 'Hello World'
    

    Padders

    Pad string to specific length from left:

    a = lpad('123', 5, '#'); // a = '##123';
    a = rpad('123', 5, '#'); // a = '123##';
    

    Keywords

    none

    Install

    npm i snippets

    DownloadsWeekly Downloads

    476

    Version

    0.0.6

    License

    none

    Last publish

    Collaborators

    • jhh