Iterate over array of objects in Typescript

Question

I need to iterate over the array of objects in angular 2 and limit the string length display for a particular key in the object    this productService loadAllProducts product  subscribe data   gt      if  this authService checkActiveSession data         if  data success           console log this product desc substring 0 2            for let i 0 i lt data products length  i        How to properly iterate here            console log data products 0  product desc                this source load data products          else         console log  Not binded                         I need to limit the prod desc length to  say  10 characters while displaing for which i have used   Eg   this product desc substring 0 10

User · Answer

In Typescript and ES6 you can also use for..of:

for (var product of products) {
     console.log(product.product_desc)
}

which will be transcoded to javascript:

for (var _i = 0, products_1 = products; _i < products_1.length; _i++) {
    var product = products_1[_i];
    console.log(product.product_desc);
}

User · Answer

You can use the built-in forEach function for arrays   Like this     this sets all product descriptions to a max length of 10 characters data products forEach   element    gt        element product desc   element product desc substring 0 10         Your version wasn t wrong though  It should look more like this   for let i 0  i lt data products length  i         console log data products i  product desc     use i instead of 0

[javascript] Iterate over array of objects in Typescript

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